Home / 750,723.79-1,035,987.15-428,425.60

Finding the Fourth Proportional to 750,723.79, 1,035,987.15 and 428,425.60

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Solution

The fourth proportional to 750,723.79, 1,035,987.15 and 428,425.60 is: 591,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,723.79 : 1,035,987.15 = 428,425.60 : x
  2. Step 2: Convert to fraction form
    750,723.79/1,035,987.15 = 428,425.60/x
  3. Step 3: Cross multiply
    750,723.79x = 1,035,987.15 × 428,425.60
  4. Step 4: Simplify right side
    750,723.79x = 443,843,416,331.04
  5. Step 5: Solve for x
    x = 443,843,416,331.04/750,723.79
  6. Step 6: Final answer
    x = 591,220.66

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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.