Home / 881,357.16-1,216,269.72-499,456.92

Finding the Fourth Proportional to 881,357.16, 1,216,269.72 and 499,456.92

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Solution

The fourth proportional to 881,357.16, 1,216,269.72 and 499,456.92 is: 689,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,357.16 : 1,216,269.72 = 499,456.92 : x
  2. Step 2: Convert to fraction form
    881,357.16/1,216,269.72 = 499,456.92/x
  3. Step 3: Cross multiply
    881,357.16x = 1,216,269.72 × 499,456.92
  4. Step 4: Simplify right side
    881,357.16x = 607,474,328,240.46
  5. Step 5: Solve for x
    x = 607,474,328,240.46/881,357.16
  6. Step 6: Final answer
    x = 689,248.76

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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.