Home / 887,631.40-1,331,417.94-355,009.42

Finding the Fourth Proportional to 887,631.40, 1,331,417.94 and 355,009.42

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Solution

The fourth proportional to 887,631.40, 1,331,417.94 and 355,009.42 is: 532,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,631.40 : 1,331,417.94 = 355,009.42 : x
  2. Step 2: Convert to fraction form
    887,631.40/1,331,417.94 = 355,009.42/x
  3. Step 3: Cross multiply
    887,631.40x = 1,331,417.94 × 355,009.42
  4. Step 4: Simplify right side
    887,631.40x = 472,665,910,657.00
  5. Step 5: Solve for x
    x = 472,665,910,657.00/887,631.40
  6. Step 6: Final answer
    x = 532,502.47

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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.