Home / 870,126.52-1,200,505.38-507,293.64

Finding the Fourth Proportional to 870,126.52, 1,200,505.38 and 507,293.64

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Solution

The fourth proportional to 870,126.52, 1,200,505.38 and 507,293.64 is: 699,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,126.52 : 1,200,505.38 = 507,293.64 : x
  2. Step 2: Convert to fraction form
    870,126.52/1,200,505.38 = 507,293.64/x
  3. Step 3: Cross multiply
    870,126.52x = 1,200,505.38 × 507,293.64
  4. Step 4: Simplify right side
    870,126.52x = 609,008,744,059.78
  5. Step 5: Solve for x
    x = 609,008,744,059.78/870,126.52
  6. Step 6: Final answer
    x = 699,908.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.