Home / 727,426.31-1,003,926.78-400,772.70

Finding the Fourth Proportional to 727,426.31, 1,003,926.78 and 400,772.70

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Solution

The fourth proportional to 727,426.31, 1,003,926.78 and 400,772.70 is: 553,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,426.31 : 1,003,926.78 = 400,772.70 : x
  2. Step 2: Convert to fraction form
    727,426.31/1,003,926.78 = 400,772.70/x
  3. Step 3: Cross multiply
    727,426.31x = 1,003,926.78 × 400,772.70
  4. Step 4: Simplify right side
    727,426.31x = 402,346,446,222.91
  5. Step 5: Solve for x
    x = 402,346,446,222.91/727,426.31
  6. Step 6: Final answer
    x = 553,109.56

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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.