Home / 765,864.12-1,148,795.64-344,647.92

Finding the Fourth Proportional to 765,864.12, 1,148,795.64 and 344,647.92

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Solution

The fourth proportional to 765,864.12, 1,148,795.64 and 344,647.92 is: 516,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,864.12 : 1,148,795.64 = 344,647.92 : x
  2. Step 2: Convert to fraction form
    765,864.12/1,148,795.64 = 344,647.92/x
  3. Step 3: Cross multiply
    765,864.12x = 1,148,795.64 × 344,647.92
  4. Step 4: Simplify right side
    765,864.12x = 395,930,027,831.07
  5. Step 5: Solve for x
    x = 395,930,027,831.07/765,864.12
  6. Step 6: Final answer
    x = 516,971.64

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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.