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Finding the Fourth Proportional to 770,652.72, 1,063,714.68 and 448,425.27

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Solution

The fourth proportional to 770,652.72, 1,063,714.68 and 448,425.27 is: 618,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,652.72 : 1,063,714.68 = 448,425.27 : x
  2. Step 2: Convert to fraction form
    770,652.72/1,063,714.68 = 448,425.27/x
  3. Step 3: Cross multiply
    770,652.72x = 1,063,714.68 × 448,425.27
  4. Step 4: Simplify right side
    770,652.72x = 476,996,542,581.96
  5. Step 5: Solve for x
    x = 476,996,542,581.96/770,652.72
  6. Step 6: Final answer
    x = 618,951.35

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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.