Home / 487,823.81-730,977.14-338,356.13

Finding the Fourth Proportional to 487,823.81, 730,977.14 and 338,356.13

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Solution

The fourth proportional to 487,823.81, 730,977.14 and 338,356.13 is: 507,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,823.81 : 730,977.14 = 338,356.13 : x
  2. Step 2: Convert to fraction form
    487,823.81/730,977.14 = 338,356.13/x
  3. Step 3: Cross multiply
    487,823.81x = 730,977.14 × 338,356.13
  4. Step 4: Simplify right side
    487,823.81x = 247,330,590,862.20
  5. Step 5: Solve for x
    x = 247,330,590,862.20/487,823.81
  6. Step 6: Final answer
    x = 507,008.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.