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Finding the Fourth Proportional to 610,790.40, 842,895.84 and 338,876.13

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Solution

The fourth proportional to 610,790.40, 842,895.84 and 338,876.13 is: 467,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,790.40 : 842,895.84 = 338,876.13 : x
  2. Step 2: Convert to fraction form
    610,790.40/842,895.84 = 338,876.13/x
  3. Step 3: Cross multiply
    610,790.40x = 842,895.84 × 338,876.13
  4. Step 4: Simplify right side
    610,790.40x = 285,637,280,252.30
  5. Step 5: Solve for x
    x = 285,637,280,252.30/610,790.40
  6. Step 6: Final answer
    x = 467,651.88

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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.