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Finding the Fourth Proportional to 671,341.60, 926,785.29 and 442,046.80

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Solution

The fourth proportional to 671,341.60, 926,785.29 and 442,046.80 is: 610,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,341.60 : 926,785.29 = 442,046.80 : x
  2. Step 2: Convert to fraction form
    671,341.60/926,785.29 = 442,046.80/x
  3. Step 3: Cross multiply
    671,341.60x = 926,785.29 × 442,046.80
  4. Step 4: Simplify right side
    671,341.60x = 409,682,471,731.57
  5. Step 5: Solve for x
    x = 409,682,471,731.57/671,341.60
  6. Step 6: Final answer
    x = 610,244.43

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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.