Home / 724,807.40-1,087,211.10-617,498.60

Finding the Fourth Proportional to 724,807.40, 1,087,211.10 and 617,498.60

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Solution

The fourth proportional to 724,807.40, 1,087,211.10 and 617,498.60 is: 926,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,807.40 : 1,087,211.10 = 617,498.60 : x
  2. Step 2: Convert to fraction form
    724,807.40/1,087,211.10 = 617,498.60/x
  3. Step 3: Cross multiply
    724,807.40x = 1,087,211.10 × 617,498.60
  4. Step 4: Simplify right side
    724,807.40x = 671,351,332,154.46
  5. Step 5: Solve for x
    x = 671,351,332,154.46/724,807.40
  6. Step 6: Final answer
    x = 926,247.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.