Home / 819,957.66-1,131,428.43-457,339.02

Finding the Fourth Proportional to 819,957.66, 1,131,428.43 and 457,339.02

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Solution

The fourth proportional to 819,957.66, 1,131,428.43 and 457,339.02 is: 631,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,957.66 : 1,131,428.43 = 457,339.02 : x
  2. Step 2: Convert to fraction form
    819,957.66/1,131,428.43 = 457,339.02/x
  3. Step 3: Cross multiply
    819,957.66x = 1,131,428.43 × 457,339.02
  4. Step 4: Simplify right side
    819,957.66x = 517,446,369,376.34
  5. Step 5: Solve for x
    x = 517,446,369,376.34/819,957.66
  6. Step 6: Final answer
    x = 631,064.74

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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.