Home / 560,966.88-840,827.03-427,406.79

Finding the Fourth Proportional to 560,966.88, 840,827.03 and 427,406.79

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Solution

The fourth proportional to 560,966.88, 840,827.03 and 427,406.79 is: 640,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,966.88 : 840,827.03 = 427,406.79 : x
  2. Step 2: Convert to fraction form
    560,966.88/840,827.03 = 427,406.79/x
  3. Step 3: Cross multiply
    560,966.88x = 840,827.03 × 427,406.79
  4. Step 4: Simplify right side
    560,966.88x = 359,375,179,700.50
  5. Step 5: Solve for x
    x = 359,375,179,700.50/560,966.88
  6. Step 6: Final answer
    x = 640,635.29

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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.