Home / 784,482.19-1,176,721.35-442,770.71

Finding the Fourth Proportional to 784,482.19, 1,176,721.35 and 442,770.71

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Solution

The fourth proportional to 784,482.19, 1,176,721.35 and 442,770.71 is: 664,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,482.19 : 1,176,721.35 = 442,770.71 : x
  2. Step 2: Convert to fraction form
    784,482.19/1,176,721.35 = 442,770.71/x
  3. Step 3: Cross multiply
    784,482.19x = 1,176,721.35 × 442,770.71
  4. Step 4: Simplify right side
    784,482.19x = 521,017,739,514.20
  5. Step 5: Solve for x
    x = 521,017,739,514.20/784,482.19
  6. Step 6: Final answer
    x = 664,154.97

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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.