Home / 921,498.64-1,381,329.41-440,839.78

Finding the Fourth Proportional to 921,498.64, 1,381,329.41 and 440,839.78

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Solution

The fourth proportional to 921,498.64, 1,381,329.41 and 440,839.78 is: 660,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,498.64 : 1,381,329.41 = 440,839.78 : x
  2. Step 2: Convert to fraction form
    921,498.64/1,381,329.41 = 440,839.78/x
  3. Step 3: Cross multiply
    921,498.64x = 1,381,329.41 × 440,839.78
  4. Step 4: Simplify right side
    921,498.64x = 608,944,950,860.71
  5. Step 5: Solve for x
    x = 608,944,950,860.71/921,498.64
  6. Step 6: Final answer
    x = 660,820.24

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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.