Home / 828,538.95-1,143,372.90-465,962.70

Finding the Fourth Proportional to 828,538.95, 1,143,372.90 and 465,962.70

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Solution

The fourth proportional to 828,538.95, 1,143,372.90 and 465,962.70 is: 643,022.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,538.95 : 1,143,372.90 = 465,962.70 : x
  2. Step 2: Convert to fraction form
    828,538.95/1,143,372.90 = 465,962.70/x
  3. Step 3: Cross multiply
    828,538.95x = 1,143,372.90 × 465,962.70
  4. Step 4: Simplify right side
    828,538.95x = 532,769,123,590.83
  5. Step 5: Solve for x
    x = 532,769,123,590.83/828,538.95
  6. Step 6: Final answer
    x = 643,022.42

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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.