Home / 885,725.52-1,328,799.18-286,686.78

Finding the Fourth Proportional to 885,725.52, 1,328,799.18 and 286,686.78

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Solution

The fourth proportional to 885,725.52, 1,328,799.18 and 286,686.78 is: 430,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,725.52 : 1,328,799.18 = 286,686.78 : x
  2. Step 2: Convert to fraction form
    885,725.52/1,328,799.18 = 286,686.78/x
  3. Step 3: Cross multiply
    885,725.52x = 1,328,799.18 × 286,686.78
  4. Step 4: Simplify right side
    885,725.52x = 380,949,158,180.84
  5. Step 5: Solve for x
    x = 380,949,158,180.84/885,725.52
  6. Step 6: Final answer
    x = 430,098.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.