Home / 829,082.10-1,242,701.55-355,686.90

Finding the Fourth Proportional to 829,082.10, 1,242,701.55 and 355,686.90

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Solution

The fourth proportional to 829,082.10, 1,242,701.55 and 355,686.90 is: 533,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,082.10 : 1,242,701.55 = 355,686.90 : x
  2. Step 2: Convert to fraction form
    829,082.10/1,242,701.55 = 355,686.90/x
  3. Step 3: Cross multiply
    829,082.10x = 1,242,701.55 × 355,686.90
  4. Step 4: Simplify right side
    829,082.10x = 442,012,661,944.70
  5. Step 5: Solve for x
    x = 442,012,661,944.70/829,082.10
  6. Step 6: Final answer
    x = 533,134.97

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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.