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Finding the Fourth Proportional to 971,352.90, 1,457,029.35 and 817,388.10

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Solution

The fourth proportional to 971,352.90, 1,457,029.35 and 817,388.10 is: 1,226,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,352.90 : 1,457,029.35 = 817,388.10 : x
  2. Step 2: Convert to fraction form
    971,352.90/1,457,029.35 = 817,388.10/x
  3. Step 3: Cross multiply
    971,352.90x = 1,457,029.35 × 817,388.10
  4. Step 4: Simplify right side
    971,352.90x = 1,190,958,452,040.74
  5. Step 5: Solve for x
    x = 1,190,958,452,040.74/971,352.90
  6. Step 6: Final answer
    x = 1,226,082.15

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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.