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Finding the Fourth Proportional to 707,312.15, 976,114.32 and 397,269.29

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Solution

The fourth proportional to 707,312.15, 976,114.32 and 397,269.29 is: 548,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,312.15 : 976,114.32 = 397,269.29 : x
  2. Step 2: Convert to fraction form
    707,312.15/976,114.32 = 397,269.29/x
  3. Step 3: Cross multiply
    707,312.15x = 976,114.32 × 397,269.29
  4. Step 4: Simplify right side
    707,312.15x = 387,780,240,559.76
  5. Step 5: Solve for x
    x = 387,780,240,559.76/707,312.15
  6. Step 6: Final answer
    x = 548,244.84

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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.