Home / 748,147.50-1,032,443.55-408,616.56

Finding the Fourth Proportional to 748,147.50, 1,032,443.55 and 408,616.56

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Solution

The fourth proportional to 748,147.50, 1,032,443.55 and 408,616.56 is: 563,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,147.50 : 1,032,443.55 = 408,616.56 : x
  2. Step 2: Convert to fraction form
    748,147.50/1,032,443.55 = 408,616.56/x
  3. Step 3: Cross multiply
    748,147.50x = 1,032,443.55 × 408,616.56
  4. Step 4: Simplify right side
    748,147.50x = 421,873,531,795.19
  5. Step 5: Solve for x
    x = 421,873,531,795.19/748,147.50
  6. Step 6: Final answer
    x = 563,890.85

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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.