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Finding the Fourth Proportional to 490,417.92, 676,849.92 and 299,541.12

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Solution

The fourth proportional to 490,417.92, 676,849.92 and 299,541.12 is: 413,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,417.92 : 676,849.92 = 299,541.12 : x
  2. Step 2: Convert to fraction form
    490,417.92/676,849.92 = 299,541.12/x
  3. Step 3: Cross multiply
    490,417.92x = 676,849.92 × 299,541.12
  4. Step 4: Simplify right side
    490,417.92x = 202,744,383,108.71
  5. Step 5: Solve for x
    x = 202,744,383,108.71/490,417.92
  6. Step 6: Final answer
    x = 413,411.45

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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.