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Finding the Fourth Proportional to 980,737.90, 1,471,106.85 and 349,672.30

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Solution

The fourth proportional to 980,737.90, 1,471,106.85 and 349,672.30 is: 524,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,737.90 : 1,471,106.85 = 349,672.30 : x
  2. Step 2: Convert to fraction form
    980,737.90/1,471,106.85 = 349,672.30/x
  3. Step 3: Cross multiply
    980,737.90x = 1,471,106.85 × 349,672.30
  4. Step 4: Simplify right side
    980,737.90x = 514,405,315,785.26
  5. Step 5: Solve for x
    x = 514,405,315,785.26/980,737.90
  6. Step 6: Final answer
    x = 524,508.45

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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.