Home / 750,724.80-1,035,988.52-428,426.60

Finding the Fourth Proportional to 750,724.80, 1,035,988.52 and 428,426.60

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Solution

The fourth proportional to 750,724.80, 1,035,988.52 and 428,426.60 is: 591,222.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,724.80 : 1,035,988.52 = 428,426.60 : x
  2. Step 2: Convert to fraction form
    750,724.80/1,035,988.52 = 428,426.60/x
  3. Step 3: Cross multiply
    750,724.80x = 1,035,988.52 × 428,426.60
  4. Step 4: Simplify right side
    750,724.80x = 443,845,039,262.63
  5. Step 5: Solve for x
    x = 443,845,039,262.63/750,724.80
  6. Step 6: Final answer
    x = 591,222.03

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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.