Home / 1,429,531.80-1,972,931.64-817,599.60

Finding the Fourth Proportional to 1,429,531.80, 1,972,931.64 and 817,599.60

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Solution

The fourth proportional to 1,429,531.80, 1,972,931.64 and 817,599.60 is: 1,128,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,531.80 : 1,972,931.64 = 817,599.60 : x
  2. Step 2: Convert to fraction form
    1,429,531.80/1,972,931.64 = 817,599.60/x
  3. Step 3: Cross multiply
    1,429,531.80x = 1,972,931.64 × 817,599.60
  4. Step 4: Simplify right side
    1,429,531.80x = 1,613,068,119,691.34
  5. Step 5: Solve for x
    x = 1,613,068,119,691.34/1,429,531.80
  6. Step 6: Final answer
    x = 1,128,389.11

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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.