Home / 971,239.09-1,456,610.12-287,966.18

Finding the Fourth Proportional to 971,239.09, 1,456,610.12 and 287,966.18

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Solution

The fourth proportional to 971,239.09, 1,456,610.12 and 287,966.18 is: 431,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,239.09 : 1,456,610.12 = 287,966.18 : x
  2. Step 2: Convert to fraction form
    971,239.09/1,456,610.12 = 287,966.18/x
  3. Step 3: Cross multiply
    971,239.09x = 1,456,610.12 × 287,966.18
  4. Step 4: Simplify right side
    971,239.09x = 419,454,445,442.61
  5. Step 5: Solve for x
    x = 419,454,445,442.61/971,239.09
  6. Step 6: Final answer
    x = 431,875.58

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1.5x scale

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.