Home / 829,082.60-1,242,702.30-355,687.40

Finding the Fourth Proportional to 829,082.60, 1,242,702.30 and 355,687.40

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Solution

The fourth proportional to 829,082.60, 1,242,702.30 and 355,687.40 is: 533,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,082.60 : 1,242,702.30 = 355,687.40 : x
  2. Step 2: Convert to fraction form
    829,082.60/1,242,702.30 = 355,687.40/x
  3. Step 3: Cross multiply
    829,082.60x = 1,242,702.30 × 355,687.40
  4. Step 4: Simplify right side
    829,082.60x = 442,013,550,061.02
  5. Step 5: Solve for x
    x = 442,013,550,061.02/829,082.60
  6. Step 6: Final answer
    x = 533,135.72

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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.