Home / 661,669.10-992,215.65-306,565.10

Finding the Fourth Proportional to 661,669.10, 992,215.65 and 306,565.10

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Solution

The fourth proportional to 661,669.10, 992,215.65 and 306,565.10 is: 459,714.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,669.10 : 992,215.65 = 306,565.10 : x
  2. Step 2: Convert to fraction form
    661,669.10/992,215.65 = 306,565.10/x
  3. Step 3: Cross multiply
    661,669.10x = 992,215.65 × 306,565.10
  4. Step 4: Simplify right side
    661,669.10x = 304,178,689,963.82
  5. Step 5: Solve for x
    x = 304,178,689,963.82/661,669.10
  6. Step 6: Final answer
    x = 459,714.21

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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.