Home / 858,470.63-1,286,022.43-497,883.95

Finding the Fourth Proportional to 858,470.63, 1,286,022.43 and 497,883.95

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Solution

The fourth proportional to 858,470.63, 1,286,022.43 and 497,883.95 is: 745,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,470.63 : 1,286,022.43 = 497,883.95 : x
  2. Step 2: Convert to fraction form
    858,470.63/1,286,022.43 = 497,883.95/x
  3. Step 3: Cross multiply
    858,470.63x = 1,286,022.43 × 497,883.95
  4. Step 4: Simplify right side
    858,470.63x = 640,289,928,663.12
  5. Step 5: Solve for x
    x = 640,289,928,663.12/858,470.63
  6. Step 6: Final answer
    x = 745,849.55

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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.