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Finding the Fourth Proportional to 364,591.80, 546,887.70 and 342,430.20

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Solution

The fourth proportional to 364,591.80, 546,887.70 and 342,430.20 is: 513,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,591.80 : 546,887.70 = 342,430.20 : x
  2. Step 2: Convert to fraction form
    364,591.80/546,887.70 = 342,430.20/x
  3. Step 3: Cross multiply
    364,591.80x = 546,887.70 × 342,430.20
  4. Step 4: Simplify right side
    364,591.80x = 187,270,864,488.54
  5. Step 5: Solve for x
    x = 187,270,864,488.54/364,591.80
  6. Step 6: Final answer
    x = 513,645.30

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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.