Home / 915,842.43-1,263,699.63-553,023.18

Finding the Fourth Proportional to 915,842.43, 1,263,699.63 and 553,023.18

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Solution

The fourth proportional to 915,842.43, 1,263,699.63 and 553,023.18 is: 763,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,842.43 : 1,263,699.63 = 553,023.18 : x
  2. Step 2: Convert to fraction form
    915,842.43/1,263,699.63 = 553,023.18/x
  3. Step 3: Cross multiply
    915,842.43x = 1,263,699.63 × 553,023.18
  4. Step 4: Simplify right side
    915,842.43x = 698,855,187,947.42
  5. Step 5: Solve for x
    x = 698,855,187,947.42/915,842.43
  6. Step 6: Final answer
    x = 763,073.61

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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.