Home / 997,780.60-1,496,670.90-287,831.80

Finding the Fourth Proportional to 997,780.60, 1,496,670.90 and 287,831.80

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Solution

The fourth proportional to 997,780.60, 1,496,670.90 and 287,831.80 is: 431,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,780.60 : 1,496,670.90 = 287,831.80 : x
  2. Step 2: Convert to fraction form
    997,780.60/1,496,670.90 = 287,831.80/x
  3. Step 3: Cross multiply
    997,780.60x = 1,496,670.90 × 287,831.80
  4. Step 4: Simplify right side
    997,780.60x = 430,789,479,154.62
  5. Step 5: Solve for x
    x = 430,789,479,154.62/997,780.60
  6. Step 6: Final answer
    x = 431,747.70

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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.