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Finding the Fourth Proportional to 971,337.80, 1,457,006.70 and 929,347.40

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Solution

The fourth proportional to 971,337.80, 1,457,006.70 and 929,347.40 is: 1,394,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,337.80 : 1,457,006.70 = 929,347.40 : x
  2. Step 2: Convert to fraction form
    971,337.80/1,457,006.70 = 929,347.40/x
  3. Step 3: Cross multiply
    971,337.80x = 1,457,006.70 × 929,347.40
  4. Step 4: Simplify right side
    971,337.80x = 1,354,065,388,427.58
  5. Step 5: Solve for x
    x = 1,354,065,388,427.58/971,337.80
  6. Step 6: Final answer
    x = 1,394,021.10

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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.