Home / 646,110.96-891,633.16-359,624.90

Finding the Fourth Proportional to 646,110.96, 891,633.16 and 359,624.90

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Solution

The fourth proportional to 646,110.96, 891,633.16 and 359,624.90 is: 496,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,110.96 : 891,633.16 = 359,624.90 : x
  2. Step 2: Convert to fraction form
    646,110.96/891,633.16 = 359,624.90/x
  3. Step 3: Cross multiply
    646,110.96x = 891,633.16 × 359,624.90
  4. Step 4: Simplify right side
    646,110.96x = 320,653,486,001.68
  5. Step 5: Solve for x
    x = 320,653,486,001.68/646,110.96
  6. Step 6: Final answer
    x = 496,282.38

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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.