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Finding the Fourth Proportional to 971,569.80, 1,457,354.70 and 768,616.20

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Solution

The fourth proportional to 971,569.80, 1,457,354.70 and 768,616.20 is: 1,152,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,569.80 : 1,457,354.70 = 768,616.20 : x
  2. Step 2: Convert to fraction form
    971,569.80/1,457,354.70 = 768,616.20/x
  3. Step 3: Cross multiply
    971,569.80x = 1,457,354.70 × 768,616.20
  4. Step 4: Simplify right side
    971,569.80x = 1,120,146,431,566.14
  5. Step 5: Solve for x
    x = 1,120,146,431,566.14/971,569.80
  6. Step 6: Final answer
    x = 1,152,924.30

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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.