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Finding the Fourth Proportional to 802,590.80, 1,203,886.20 and 715,499.60

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Solution

The fourth proportional to 802,590.80, 1,203,886.20 and 715,499.60 is: 1,073,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,590.80 : 1,203,886.20 = 715,499.60 : x
  2. Step 2: Convert to fraction form
    802,590.80/1,203,886.20 = 715,499.60/x
  3. Step 3: Cross multiply
    802,590.80x = 1,203,886.20 × 715,499.60
  4. Step 4: Simplify right side
    802,590.80x = 861,380,094,545.52
  5. Step 5: Solve for x
    x = 861,380,094,545.52/802,590.80
  6. Step 6: Final answer
    x = 1,073,249.40

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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.