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Finding the Fourth Proportional to 426,020.28, 587,803.14 and 260,406.42

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Solution

The fourth proportional to 426,020.28, 587,803.14 and 260,406.42 is: 359,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,020.28 : 587,803.14 = 260,406.42 : x
  2. Step 2: Convert to fraction form
    426,020.28/587,803.14 = 260,406.42/x
  3. Step 3: Cross multiply
    426,020.28x = 587,803.14 × 260,406.42
  4. Step 4: Simplify right side
    426,020.28x = 153,067,711,352.16
  5. Step 5: Solve for x
    x = 153,067,711,352.16/426,020.28
  6. Step 6: Final answer
    x = 359,296.77

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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.