Home / 649,916.72-896,868.30-359,520.72

Finding the Fourth Proportional to 649,916.72, 896,868.30 and 359,520.72

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Solution

The fourth proportional to 649,916.72, 896,868.30 and 359,520.72 is: 496,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,916.72 : 896,868.30 = 359,520.72 : x
  2. Step 2: Convert to fraction form
    649,916.72/896,868.30 = 359,520.72/x
  3. Step 3: Cross multiply
    649,916.72x = 896,868.30 × 359,520.72
  4. Step 4: Simplify right side
    649,916.72x = 322,442,737,968.70
  5. Step 5: Solve for x
    x = 322,442,737,968.70/649,916.72
  6. Step 6: Final answer
    x = 496,129.31

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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.