Home / 724,805.40-1,087,208.10-617,496.60

Finding the Fourth Proportional to 724,805.40, 1,087,208.10 and 617,496.60

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Solution

The fourth proportional to 724,805.40, 1,087,208.10 and 617,496.60 is: 926,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,805.40 : 1,087,208.10 = 617,496.60 : x
  2. Step 2: Convert to fraction form
    724,805.40/1,087,208.10 = 617,496.60/x
  3. Step 3: Cross multiply
    724,805.40x = 1,087,208.10 × 617,496.60
  4. Step 4: Simplify right side
    724,805.40x = 671,347,305,242.46
  5. Step 5: Solve for x
    x = 671,347,305,242.46/724,805.40
  6. Step 6: Final answer
    x = 926,244.90

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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.