Home / 918,473.40-1,377,235.46-412,601.85

Finding the Fourth Proportional to 918,473.40, 1,377,235.46 and 412,601.85

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Solution

The fourth proportional to 918,473.40, 1,377,235.46 and 412,601.85 is: 618,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,473.40 : 1,377,235.46 = 412,601.85 : x
  2. Step 2: Convert to fraction form
    918,473.40/1,377,235.46 = 412,601.85/x
  3. Step 3: Cross multiply
    918,473.40x = 1,377,235.46 × 412,601.85
  4. Step 4: Simplify right side
    918,473.40x = 568,249,897,392.22
  5. Step 5: Solve for x
    x = 568,249,897,392.22/918,473.40
  6. Step 6: Final answer
    x = 618,689.55

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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.