Home / 838,490.27-1,157,221.08-476,031.47

Finding the Fourth Proportional to 838,490.27, 1,157,221.08 and 476,031.47

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Solution

The fourth proportional to 838,490.27, 1,157,221.08 and 476,031.47 is: 656,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,490.27 : 1,157,221.08 = 476,031.47 : x
  2. Step 2: Convert to fraction form
    838,490.27/1,157,221.08 = 476,031.47/x
  3. Step 3: Cross multiply
    838,490.27x = 1,157,221.08 × 476,031.47
  4. Step 4: Simplify right side
    838,490.27x = 550,873,646,041.28
  5. Step 5: Solve for x
    x = 550,873,646,041.28/838,490.27
  6. Step 6: Final answer
    x = 656,982.76

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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.