Home / 890,359.66-1,228,718.88-546,385.54

Finding the Fourth Proportional to 890,359.66, 1,228,718.88 and 546,385.54

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Solution

The fourth proportional to 890,359.66, 1,228,718.88 and 546,385.54 is: 754,025.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,359.66 : 1,228,718.88 = 546,385.54 : x
  2. Step 2: Convert to fraction form
    890,359.66/1,228,718.88 = 546,385.54/x
  3. Step 3: Cross multiply
    890,359.66x = 1,228,718.88 × 546,385.54
  4. Step 4: Simplify right side
    890,359.66x = 671,354,228,757.00
  5. Step 5: Solve for x
    x = 671,354,228,757.00/890,359.66
  6. Step 6: Final answer
    x = 754,025.88

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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.