Home / 938,390.85-1,407,573.12-369,776.89

Finding the Fourth Proportional to 938,390.85, 1,407,573.12 and 369,776.89

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Solution

The fourth proportional to 938,390.85, 1,407,573.12 and 369,776.89 is: 554,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,390.85 : 1,407,573.12 = 369,776.89 : x
  2. Step 2: Convert to fraction form
    938,390.85/1,407,573.12 = 369,776.89/x
  3. Step 3: Cross multiply
    938,390.85x = 1,407,573.12 × 369,776.89
  4. Step 4: Simplify right side
    938,390.85x = 520,488,010,761.20
  5. Step 5: Solve for x
    x = 520,488,010,761.20/938,390.85
  6. Step 6: Final answer
    x = 554,660.15

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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.