Home / 750,319.49-1,035,344.48-428,010.36

Finding the Fourth Proportional to 750,319.49, 1,035,344.48 and 428,010.36

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Solution

The fourth proportional to 750,319.49, 1,035,344.48 and 428,010.36 is: 590,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,319.49 : 1,035,344.48 = 428,010.36 : x
  2. Step 2: Convert to fraction form
    750,319.49/1,035,344.48 = 428,010.36/x
  3. Step 3: Cross multiply
    750,319.49x = 1,035,344.48 × 428,010.36
  4. Step 4: Simplify right side
    750,319.49x = 443,138,161,468.76
  5. Step 5: Solve for x
    x = 443,138,161,468.76/750,319.49
  6. Step 6: Final answer
    x = 590,599.30

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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.