Home / 790,946.17-1,091,500.29-428,361.75

Finding the Fourth Proportional to 790,946.17, 1,091,500.29 and 428,361.75

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Solution

The fourth proportional to 790,946.17, 1,091,500.29 and 428,361.75 is: 591,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,946.17 : 1,091,500.29 = 428,361.75 : x
  2. Step 2: Convert to fraction form
    790,946.17/1,091,500.29 = 428,361.75/x
  3. Step 3: Cross multiply
    790,946.17x = 1,091,500.29 × 428,361.75
  4. Step 4: Simplify right side
    790,946.17x = 467,556,974,349.91
  5. Step 5: Solve for x
    x = 467,556,974,349.91/790,946.17
  6. Step 6: Final answer
    x = 591,136.28

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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.