Home / 912,279.34-1,368,642.17-642,933.01

Finding the Fourth Proportional to 912,279.34, 1,368,642.17 and 642,933.01

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Solution

The fourth proportional to 912,279.34, 1,368,642.17 and 642,933.01 is: 964,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,279.34 : 1,368,642.17 = 642,933.01 : x
  2. Step 2: Convert to fraction form
    912,279.34/1,368,642.17 = 642,933.01/x
  3. Step 3: Cross multiply
    912,279.34x = 1,368,642.17 × 642,933.01
  4. Step 4: Simplify right side
    912,279.34x = 879,945,229,672.67
  5. Step 5: Solve for x
    x = 879,945,229,672.67/912,279.34
  6. Step 6: Final answer
    x = 964,556.79

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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.