Home / 392,811.77-542,038.15-263,724.10

Finding the Fourth Proportional to 392,811.77, 542,038.15 and 263,724.10

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Solution

The fourth proportional to 392,811.77, 542,038.15 and 263,724.10 is: 363,911.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,811.77 : 542,038.15 = 263,724.10 : x
  2. Step 2: Convert to fraction form
    392,811.77/542,038.15 = 263,724.10/x
  3. Step 3: Cross multiply
    392,811.77x = 542,038.15 × 263,724.10
  4. Step 4: Simplify right side
    392,811.77x = 142,948,523,274.42
  5. Step 5: Solve for x
    x = 142,948,523,274.42/392,811.77
  6. Step 6: Final answer
    x = 363,911.00

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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.