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Finding the Fourth Proportional to 707,311.97, 976,114.06 and 397,269.10

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Solution

The fourth proportional to 707,311.97, 976,114.06 and 397,269.10 is: 548,244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,311.97 : 976,114.06 = 397,269.10 : x
  2. Step 2: Convert to fraction form
    707,311.97/976,114.06 = 397,269.10/x
  3. Step 3: Cross multiply
    707,311.97x = 976,114.06 × 397,269.10
  4. Step 4: Simplify right side
    707,311.97x = 387,779,955,830.28
  5. Step 5: Solve for x
    x = 387,779,955,830.28/707,311.97
  6. Step 6: Final answer
    x = 548,244.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.