Home / 790,837.20-1,091,355.93-428,261.46

Finding the Fourth Proportional to 790,837.20, 1,091,355.93 and 428,261.46

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Solution

The fourth proportional to 790,837.20, 1,091,355.93 and 428,261.46 is: 591,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,837.20 : 1,091,355.93 = 428,261.46 : x
  2. Step 2: Convert to fraction form
    790,837.20/1,091,355.93 = 428,261.46/x
  3. Step 3: Cross multiply
    790,837.20x = 1,091,355.93 × 428,261.46
  4. Step 4: Simplify right side
    790,837.20x = 467,385,683,961.46
  5. Step 5: Solve for x
    x = 467,385,683,961.46/790,837.20
  6. Step 6: Final answer
    x = 591,001.14

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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.