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Finding the Fourth Proportional to 641,604.52, 885,445.70 and 369,714.92

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Solution

The fourth proportional to 641,604.52, 885,445.70 and 369,714.92 is: 510,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,604.52 : 885,445.70 = 369,714.92 : x
  2. Step 2: Convert to fraction form
    641,604.52/885,445.70 = 369,714.92/x
  3. Step 3: Cross multiply
    641,604.52x = 885,445.70 × 369,714.92
  4. Step 4: Simplify right side
    641,604.52x = 327,362,486,139.84
  5. Step 5: Solve for x
    x = 327,362,486,139.84/641,604.52
  6. Step 6: Final answer
    x = 510,224.72

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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.