Home / 757,761.60-1,045,636.56-418,207.92

Finding the Fourth Proportional to 757,761.60, 1,045,636.56 and 418,207.92

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Solution

The fourth proportional to 757,761.60, 1,045,636.56 and 418,207.92 is: 577,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,761.60 : 1,045,636.56 = 418,207.92 : x
  2. Step 2: Convert to fraction form
    757,761.60/1,045,636.56 = 418,207.92/x
  3. Step 3: Cross multiply
    757,761.60x = 1,045,636.56 × 418,207.92
  4. Step 4: Simplify right side
    757,761.60x = 437,293,490,833.56
  5. Step 5: Solve for x
    x = 437,293,490,833.56/757,761.60
  6. Step 6: Final answer
    x = 577,085.84

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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.