Home / 754,123.02-1,040,695.74-409,958.88

Finding the Fourth Proportional to 754,123.02, 1,040,695.74 and 409,958.88

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Solution

The fourth proportional to 754,123.02, 1,040,695.74 and 409,958.88 is: 565,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,123.02 : 1,040,695.74 = 409,958.88 : x
  2. Step 2: Convert to fraction form
    754,123.02/1,040,695.74 = 409,958.88/x
  3. Step 3: Cross multiply
    754,123.02x = 1,040,695.74 × 409,958.88
  4. Step 4: Simplify right side
    754,123.02x = 426,642,459,991.17
  5. Step 5: Solve for x
    x = 426,642,459,991.17/754,123.02
  6. Step 6: Final answer
    x = 565,746.50

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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.