Home / 772,242.47-1,065,062.73-543,556.79

Finding the Fourth Proportional to 772,242.47, 1,065,062.73 and 543,556.79

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Solution

The fourth proportional to 772,242.47, 1,065,062.73 and 543,556.79 is: 749,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,242.47 : 1,065,062.73 = 543,556.79 : x
  2. Step 2: Convert to fraction form
    772,242.47/1,065,062.73 = 543,556.79/x
  3. Step 3: Cross multiply
    772,242.47x = 1,065,062.73 × 543,556.79
  4. Step 4: Simplify right side
    772,242.47x = 578,922,073,342.12
  5. Step 5: Solve for x
    x = 578,922,073,342.12/772,242.47
  6. Step 6: Final answer
    x = 749,663.61

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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.