Home / 578,421.40-867,632.10-574,484.80

Finding the Fourth Proportional to 578,421.40, 867,632.10 and 574,484.80

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Solution

The fourth proportional to 578,421.40, 867,632.10 and 574,484.80 is: 861,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,421.40 : 867,632.10 = 574,484.80 : x
  2. Step 2: Convert to fraction form
    578,421.40/867,632.10 = 574,484.80/x
  3. Step 3: Cross multiply
    578,421.40x = 867,632.10 × 574,484.80
  4. Step 4: Simplify right side
    578,421.40x = 498,441,453,442.08
  5. Step 5: Solve for x
    x = 498,441,453,442.08/578,421.40
  6. Step 6: Final answer
    x = 861,727.20

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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.