Home / 987,404.10-1,481,106.15-910,421.70

Finding the Fourth Proportional to 987,404.10, 1,481,106.15 and 910,421.70

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Solution

The fourth proportional to 987,404.10, 1,481,106.15 and 910,421.70 is: 1,365,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,404.10 : 1,481,106.15 = 910,421.70 : x
  2. Step 2: Convert to fraction form
    987,404.10/1,481,106.15 = 910,421.70/x
  3. Step 3: Cross multiply
    987,404.10x = 1,481,106.15 × 910,421.70
  4. Step 4: Simplify right side
    987,404.10x = 1,348,431,178,963.45
  5. Step 5: Solve for x
    x = 1,348,431,178,963.45/987,404.10
  6. Step 6: Final answer
    x = 1,365,632.55

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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.