Home / 772,749.92-1,065,468.12-500,718.54

Finding the Fourth Proportional to 772,749.92, 1,065,468.12 and 500,718.54

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Solution

The fourth proportional to 772,749.92, 1,065,468.12 and 500,718.54 is: 690,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,749.92 : 1,065,468.12 = 500,718.54 : x
  2. Step 2: Convert to fraction form
    772,749.92/1,065,468.12 = 500,718.54/x
  3. Step 3: Cross multiply
    772,749.92x = 1,065,468.12 × 500,718.54
  4. Step 4: Simplify right side
    772,749.92x = 533,499,641,462.95
  5. Step 5: Solve for x
    x = 533,499,641,462.95/772,749.92
  6. Step 6: Final answer
    x = 690,391.07

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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.