Home / 652,876.16-979,161.12-315,750.12

Finding the Fourth Proportional to 652,876.16, 979,161.12 and 315,750.12

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Solution

The fourth proportional to 652,876.16, 979,161.12 and 315,750.12 is: 473,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,876.16 : 979,161.12 = 315,750.12 : x
  2. Step 2: Convert to fraction form
    652,876.16/979,161.12 = 315,750.12/x
  3. Step 3: Cross multiply
    652,876.16x = 979,161.12 × 315,750.12
  4. Step 4: Simplify right side
    652,876.16x = 309,170,241,139.33
  5. Step 5: Solve for x
    x = 309,170,241,139.33/652,876.16
  6. Step 6: Final answer
    x = 473,551.13

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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.