Home / 661,948-913,507.68-360,161.44

Finding the Fourth Proportional to 661,948, 913,507.68 and 360,161.44

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Solution

The fourth proportional to 661,948, 913,507.68 and 360,161.44 is: 497,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,948 : 913,507.68 = 360,161.44 : x
  2. Step 2: Convert to fraction form
    661,948/913,507.68 = 360,161.44/x
  3. Step 3: Cross multiply
    661,948x = 913,507.68 × 360,161.44
  4. Step 4: Simplify right side
    661,948x = 329,010,241,479.86
  5. Step 5: Solve for x
    x = 329,010,241,479.86/661,948
  6. Step 6: Final answer
    x = 497,033.36

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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.