Home / 772,283.13-1,065,696.96-428,115.75

Finding the Fourth Proportional to 772,283.13, 1,065,696.96 and 428,115.75

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Solution

The fourth proportional to 772,283.13, 1,065,696.96 and 428,115.75 is: 590,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,283.13 : 1,065,696.96 = 428,115.75 : x
  2. Step 2: Convert to fraction form
    772,283.13/1,065,696.96 = 428,115.75/x
  3. Step 3: Cross multiply
    772,283.13x = 1,065,696.96 × 428,115.75
  4. Step 4: Simplify right side
    772,283.13x = 456,241,655,967.36
  5. Step 5: Solve for x
    x = 456,241,655,967.36/772,283.13
  6. Step 6: Final answer
    x = 590,769.93

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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.