Home / 833,278.32-1,149,920.54-465,754.98

Finding the Fourth Proportional to 833,278.32, 1,149,920.54 and 465,754.98

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Solution

The fourth proportional to 833,278.32, 1,149,920.54 and 465,754.98 is: 642,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,278.32 : 1,149,920.54 = 465,754.98 : x
  2. Step 2: Convert to fraction form
    833,278.32/1,149,920.54 = 465,754.98/x
  3. Step 3: Cross multiply
    833,278.32x = 1,149,920.54 × 465,754.98
  4. Step 4: Simplify right side
    833,278.32x = 535,581,218,109.29
  5. Step 5: Solve for x
    x = 535,581,218,109.29/833,278.32
  6. Step 6: Final answer
    x = 642,739.89

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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.