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Finding the Fourth Proportional to 608,007.20, 912,010.80 and 538,023.20

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Solution

The fourth proportional to 608,007.20, 912,010.80 and 538,023.20 is: 807,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,007.20 : 912,010.80 = 538,023.20 : x
  2. Step 2: Convert to fraction form
    608,007.20/912,010.80 = 538,023.20/x
  3. Step 3: Cross multiply
    608,007.20x = 912,010.80 × 538,023.20
  4. Step 4: Simplify right side
    608,007.20x = 490,682,969,050.56
  5. Step 5: Solve for x
    x = 490,682,969,050.56/608,007.20
  6. Step 6: Final answer
    x = 807,034.80

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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.