Home / 890,219.04-1,227,832.56-618,287.28

Finding the Fourth Proportional to 890,219.04, 1,227,832.56 and 618,287.28

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Solution

The fourth proportional to 890,219.04, 1,227,832.56 and 618,287.28 is: 852,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,219.04 : 1,227,832.56 = 618,287.28 : x
  2. Step 2: Convert to fraction form
    890,219.04/1,227,832.56 = 618,287.28/x
  3. Step 3: Cross multiply
    890,219.04x = 1,227,832.56 × 618,287.28
  4. Step 4: Simplify right side
    890,219.04x = 759,153,253,817.84
  5. Step 5: Solve for x
    x = 759,153,253,817.84/890,219.04
  6. Step 6: Final answer
    x = 852,771.31

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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.