Home / 985,730.80-1,478,596.20-424,765.30

Finding the Fourth Proportional to 985,730.80, 1,478,596.20 and 424,765.30

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Solution

The fourth proportional to 985,730.80, 1,478,596.20 and 424,765.30 is: 637,147.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,730.80 : 1,478,596.20 = 424,765.30 : x
  2. Step 2: Convert to fraction form
    985,730.80/1,478,596.20 = 424,765.30/x
  3. Step 3: Cross multiply
    985,730.80x = 1,478,596.20 × 424,765.30
  4. Step 4: Simplify right side
    985,730.80x = 628,056,358,471.86
  5. Step 5: Solve for x
    x = 628,056,358,471.86/985,730.80
  6. Step 6: Final answer
    x = 637,147.95

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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.