Home / 790,946.61-1,091,500.90-428,362.18

Finding the Fourth Proportional to 790,946.61, 1,091,500.90 and 428,362.18

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Solution

The fourth proportional to 790,946.61, 1,091,500.90 and 428,362.18 is: 591,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,946.61 : 1,091,500.90 = 428,362.18 : x
  2. Step 2: Convert to fraction form
    790,946.61/1,091,500.90 = 428,362.18/x
  3. Step 3: Cross multiply
    790,946.61x = 1,091,500.90 × 428,362.18
  4. Step 4: Simplify right side
    790,946.61x = 467,557,704,995.96
  5. Step 5: Solve for x
    x = 467,557,704,995.96/790,946.61
  6. Step 6: Final answer
    x = 591,136.87

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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.