Home / 653,026.77-979,618.06-315,825.12

Finding the Fourth Proportional to 653,026.77, 979,618.06 and 315,825.12

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Solution

The fourth proportional to 653,026.77, 979,618.06 and 315,825.12 is: 473,775.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,026.77 : 979,618.06 = 315,825.12 : x
  2. Step 2: Convert to fraction form
    653,026.77/979,618.06 = 315,825.12/x
  3. Step 3: Cross multiply
    653,026.77x = 979,618.06 × 315,825.12
  4. Step 4: Simplify right side
    653,026.77x = 309,387,991,353.67
  5. Step 5: Solve for x
    x = 309,387,991,353.67/653,026.77
  6. Step 6: Final answer
    x = 473,775.36

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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.