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Finding the Fourth Proportional to 894,862.21, 1,234,910.03 and 492,454.21

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Solution

The fourth proportional to 894,862.21, 1,234,910.03 and 492,454.21 is: 679,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,862.21 : 1,234,910.03 = 492,454.21 : x
  2. Step 2: Convert to fraction form
    894,862.21/1,234,910.03 = 492,454.21/x
  3. Step 3: Cross multiply
    894,862.21x = 1,234,910.03 × 492,454.21
  4. Step 4: Simplify right side
    894,862.21x = 608,136,643,244.73
  5. Step 5: Solve for x
    x = 608,136,643,244.73/894,862.21
  6. Step 6: Final answer
    x = 679,586.91

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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.