Home / 714,547.91-1,071,006.51-287,810.59

Finding the Fourth Proportional to 714,547.91, 1,071,006.51 and 287,810.59

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Solution

The fourth proportional to 714,547.91, 1,071,006.51 and 287,810.59 is: 431,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,547.91 : 1,071,006.51 = 287,810.59 : x
  2. Step 2: Convert to fraction form
    714,547.91/1,071,006.51 = 287,810.59/x
  3. Step 3: Cross multiply
    714,547.91x = 1,071,006.51 × 287,810.59
  4. Step 4: Simplify right side
    714,547.91x = 308,247,019,963.13
  5. Step 5: Solve for x
    x = 308,247,019,963.13/714,547.91
  6. Step 6: Final answer
    x = 431,387.48

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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.