Home / 971,386.20-1,457,079.30-869,909.40

Finding the Fourth Proportional to 971,386.20, 1,457,079.30 and 869,909.40

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Solution

The fourth proportional to 971,386.20, 1,457,079.30 and 869,909.40 is: 1,304,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,386.20 : 1,457,079.30 = 869,909.40 : x
  2. Step 2: Convert to fraction form
    971,386.20/1,457,079.30 = 869,909.40/x
  3. Step 3: Cross multiply
    971,386.20x = 1,457,079.30 × 869,909.40
  4. Step 4: Simplify right side
    971,386.20x = 1,267,526,979,615.42
  5. Step 5: Solve for x
    x = 1,267,526,979,615.42/971,386.20
  6. Step 6: Final answer
    x = 1,304,864.10

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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.