Home / 858,961.59-1,288,229.40-290,330.04

Finding the Fourth Proportional to 858,961.59, 1,288,229.40 and 290,330.04

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Solution

The fourth proportional to 858,961.59, 1,288,229.40 and 290,330.04 is: 435,423.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,961.59 : 1,288,229.40 = 290,330.04 : x
  2. Step 2: Convert to fraction form
    858,961.59/1,288,229.40 = 290,330.04/x
  3. Step 3: Cross multiply
    858,961.59x = 1,288,229.40 × 290,330.04
  4. Step 4: Simplify right side
    858,961.59x = 374,011,693,231.18
  5. Step 5: Solve for x
    x = 374,011,693,231.18/858,961.59
  6. Step 6: Final answer
    x = 435,423.07

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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.