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Finding the Fourth Proportional to 971,340.40, 1,457,010.60 and 817,375.60

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Solution

The fourth proportional to 971,340.40, 1,457,010.60 and 817,375.60 is: 1,226,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,340.40 : 1,457,010.60 = 817,375.60 : x
  2. Step 2: Convert to fraction form
    971,340.40/1,457,010.60 = 817,375.60/x
  3. Step 3: Cross multiply
    971,340.40x = 1,457,010.60 × 817,375.60
  4. Step 4: Simplify right side
    971,340.40x = 1,190,924,913,381.36
  5. Step 5: Solve for x
    x = 1,190,924,913,381.36/971,340.40
  6. Step 6: Final answer
    x = 1,226,063.40

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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.