Home / 773,079.17-1,066,813.20-428,911.43

Finding the Fourth Proportional to 773,079.17, 1,066,813.20 and 428,911.43

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Solution

The fourth proportional to 773,079.17, 1,066,813.20 and 428,911.43 is: 591,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,079.17 : 1,066,813.20 = 428,911.43 : x
  2. Step 2: Convert to fraction form
    773,079.17/1,066,813.20 = 428,911.43/x
  3. Step 3: Cross multiply
    773,079.17x = 1,066,813.20 × 428,911.43
  4. Step 4: Simplify right side
    773,079.17x = 457,568,369,820.81
  5. Step 5: Solve for x
    x = 457,568,369,820.81/773,079.17
  6. Step 6: Final answer
    x = 591,877.77

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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.