Home / 813,987.84-1,123,374.24-474,448.80

Finding the Fourth Proportional to 813,987.84, 1,123,374.24 and 474,448.80

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Solution

The fourth proportional to 813,987.84, 1,123,374.24 and 474,448.80 is: 654,780.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,987.84 : 1,123,374.24 = 474,448.80 : x
  2. Step 2: Convert to fraction form
    813,987.84/1,123,374.24 = 474,448.80/x
  3. Step 3: Cross multiply
    813,987.84x = 1,123,374.24 × 474,448.80
  4. Step 4: Simplify right side
    813,987.84x = 532,983,560,118.91
  5. Step 5: Solve for x
    x = 532,983,560,118.91/813,987.84
  6. Step 6: Final answer
    x = 654,780.74

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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.