Home / 726,428.42-1,002,457.50-404,137.52

Finding the Fourth Proportional to 726,428.42, 1,002,457.50 and 404,137.52

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Solution

The fourth proportional to 726,428.42, 1,002,457.50 and 404,137.52 is: 557,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,428.42 : 1,002,457.50 = 404,137.52 : x
  2. Step 2: Convert to fraction form
    726,428.42/1,002,457.50 = 404,137.52/x
  3. Step 3: Cross multiply
    726,428.42x = 1,002,457.50 × 404,137.52
  4. Step 4: Simplify right side
    726,428.42x = 405,130,687,955.40
  5. Step 5: Solve for x
    x = 405,130,687,955.40/726,428.42
  6. Step 6: Final answer
    x = 557,702.14

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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.