Home / 727,909.40-1,091,864.10-686,575.10

Finding the Fourth Proportional to 727,909.40, 1,091,864.10 and 686,575.10

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Solution

The fourth proportional to 727,909.40, 1,091,864.10 and 686,575.10 is: 1,029,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,909.40 : 1,091,864.10 = 686,575.10 : x
  2. Step 2: Convert to fraction form
    727,909.40/1,091,864.10 = 686,575.10/x
  3. Step 3: Cross multiply
    727,909.40x = 1,091,864.10 × 686,575.10
  4. Step 4: Simplify right side
    727,909.40x = 749,646,703,643.91
  5. Step 5: Solve for x
    x = 749,646,703,643.91/727,909.40
  6. Step 6: Final answer
    x = 1,029,862.65

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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.