Home / 530,187.20-795,280.80-472,126.40

Finding the Fourth Proportional to 530,187.20, 795,280.80 and 472,126.40

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Solution

The fourth proportional to 530,187.20, 795,280.80 and 472,126.40 is: 708,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,187.20 : 795,280.80 = 472,126.40 : x
  2. Step 2: Convert to fraction form
    530,187.20/795,280.80 = 472,126.40/x
  3. Step 3: Cross multiply
    530,187.20x = 795,280.80 × 472,126.40
  4. Step 4: Simplify right side
    530,187.20x = 375,473,061,093.12
  5. Step 5: Solve for x
    x = 375,473,061,093.12/530,187.20
  6. Step 6: Final answer
    x = 708,189.60

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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.