Home / 890,177.50-1,228,444.95-487,760.86

Finding the Fourth Proportional to 890,177.50, 1,228,444.95 and 487,760.86

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Solution

The fourth proportional to 890,177.50, 1,228,444.95 and 487,760.86 is: 673,109.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,177.50 : 1,228,444.95 = 487,760.86 : x
  2. Step 2: Convert to fraction form
    890,177.50/1,228,444.95 = 487,760.86/x
  3. Step 3: Cross multiply
    890,177.50x = 1,228,444.95 × 487,760.86
  4. Step 4: Simplify right side
    890,177.50x = 599,187,365,274.66
  5. Step 5: Solve for x
    x = 599,187,365,274.66/890,177.50
  6. Step 6: Final answer
    x = 673,109.99

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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.