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Finding the Fourth Proportional to 971,369.70, 1,457,054.55 and 869,892.90

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Solution

The fourth proportional to 971,369.70, 1,457,054.55 and 869,892.90 is: 1,304,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,369.70 : 1,457,054.55 = 869,892.90 : x
  2. Step 2: Convert to fraction form
    971,369.70/1,457,054.55 = 869,892.90/x
  3. Step 3: Cross multiply
    971,369.70x = 1,457,054.55 × 869,892.90
  4. Step 4: Simplify right side
    971,369.70x = 1,267,481,407,957.70
  5. Step 5: Solve for x
    x = 1,267,481,407,957.70/971,369.70
  6. Step 6: Final answer
    x = 1,304,839.35

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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.