Home / 713,188.20-1,069,782.30-678,196.20

Finding the Fourth Proportional to 713,188.20, 1,069,782.30 and 678,196.20

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Solution

The fourth proportional to 713,188.20, 1,069,782.30 and 678,196.20 is: 1,017,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,188.20 : 1,069,782.30 = 678,196.20 : x
  2. Step 2: Convert to fraction form
    713,188.20/1,069,782.30 = 678,196.20/x
  3. Step 3: Cross multiply
    713,188.20x = 1,069,782.30 × 678,196.20
  4. Step 4: Simplify right side
    713,188.20x = 725,522,290,687.26
  5. Step 5: Solve for x
    x = 725,522,290,687.26/713,188.20
  6. Step 6: Final answer
    x = 1,017,294.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.