Home / 810,332.48-1,215,709.92-455,608.64

Finding the Fourth Proportional to 810,332.48, 1,215,709.92 and 455,608.64

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Solution

The fourth proportional to 810,332.48, 1,215,709.92 and 455,608.64 is: 683,531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,332.48 : 1,215,709.92 = 455,608.64 : x
  2. Step 2: Convert to fraction form
    810,332.48/1,215,709.92 = 455,608.64/x
  3. Step 3: Cross multiply
    810,332.48x = 1,215,709.92 × 455,608.64
  4. Step 4: Simplify right side
    810,332.48x = 553,887,943,285.71
  5. Step 5: Solve for x
    x = 553,887,943,285.71/810,332.48
  6. Step 6: Final answer
    x = 683,531.71

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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.