Home / 787,403.85-1,086,617.03-429,707.85

Finding the Fourth Proportional to 787,403.85, 1,086,617.03 and 429,707.85

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Solution

The fourth proportional to 787,403.85, 1,086,617.03 and 429,707.85 is: 592,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,403.85 : 1,086,617.03 = 429,707.85 : x
  2. Step 2: Convert to fraction form
    787,403.85/1,086,617.03 = 429,707.85/x
  3. Step 3: Cross multiply
    787,403.85x = 1,086,617.03 × 429,707.85
  4. Step 4: Simplify right side
    787,403.85x = 466,927,865,586.15
  5. Step 5: Solve for x
    x = 466,927,865,586.15/787,403.85
  6. Step 6: Final answer
    x = 592,996.68

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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.