Home / 912,883.32-1,369,449.56-380,279.79

Finding the Fourth Proportional to 912,883.32, 1,369,449.56 and 380,279.79

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Solution

The fourth proportional to 912,883.32, 1,369,449.56 and 380,279.79 is: 570,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,883.32 : 1,369,449.56 = 380,279.79 : x
  2. Step 2: Convert to fraction form
    912,883.32/1,369,449.56 = 380,279.79/x
  3. Step 3: Cross multiply
    912,883.32x = 1,369,449.56 × 380,279.79
  4. Step 4: Simplify right side
    912,883.32x = 520,773,992,043.09
  5. Step 5: Solve for x
    x = 520,773,992,043.09/912,883.32
  6. Step 6: Final answer
    x = 570,471.58

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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.