Home / 773,077.66-1,066,811.13-428,909.92

Finding the Fourth Proportional to 773,077.66, 1,066,811.13 and 428,909.92

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Solution

The fourth proportional to 773,077.66, 1,066,811.13 and 428,909.92 is: 591,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,077.66 : 1,066,811.13 = 428,909.92 : x
  2. Step 2: Convert to fraction form
    773,077.66/1,066,811.13 = 428,909.92/x
  3. Step 3: Cross multiply
    773,077.66x = 1,066,811.13 × 428,909.92
  4. Step 4: Simplify right side
    773,077.66x = 457,565,873,756.38
  5. Step 5: Solve for x
    x = 457,565,873,756.38/773,077.66
  6. Step 6: Final answer
    x = 591,875.69

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1.5x scale

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.