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Finding the Fourth Proportional to 558,801.60, 771,103.20 and 304,147.20

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Solution

The fourth proportional to 558,801.60, 771,103.20 and 304,147.20 is: 419,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,801.60 : 771,103.20 = 304,147.20 : x
  2. Step 2: Convert to fraction form
    558,801.60/771,103.20 = 304,147.20/x
  3. Step 3: Cross multiply
    558,801.60x = 771,103.20 × 304,147.20
  4. Step 4: Simplify right side
    558,801.60x = 234,528,879,191.04
  5. Step 5: Solve for x
    x = 234,528,879,191.04/558,801.60
  6. Step 6: Final answer
    x = 419,699.73

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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.