Home / 912,417.88-1,368,538.86-281,162.20

Finding the Fourth Proportional to 912,417.88, 1,368,538.86 and 281,162.20

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Solution

The fourth proportional to 912,417.88, 1,368,538.86 and 281,162.20 is: 421,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,417.88 : 1,368,538.86 = 281,162.20 : x
  2. Step 2: Convert to fraction form
    912,417.88/1,368,538.86 = 281,162.20/x
  3. Step 3: Cross multiply
    912,417.88x = 1,368,538.86 × 281,162.20
  4. Step 4: Simplify right side
    912,417.88x = 384,781,396,663.09
  5. Step 5: Solve for x
    x = 384,781,396,663.09/912,417.88
  6. Step 6: Final answer
    x = 421,716.20

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1.5x scale

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.