Home / 772,252.70-1,065,654.97-428,085.32

Finding the Fourth Proportional to 772,252.70, 1,065,654.97 and 428,085.32

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Solution

The fourth proportional to 772,252.70, 1,065,654.97 and 428,085.32 is: 590,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,252.70 : 1,065,654.97 = 428,085.32 : x
  2. Step 2: Convert to fraction form
    772,252.70/1,065,654.97 = 428,085.32/x
  3. Step 3: Cross multiply
    772,252.70x = 1,065,654.97 × 428,085.32
  4. Step 4: Simplify right side
    772,252.70x = 456,191,242,443.55
  5. Step 5: Solve for x
    x = 456,191,242,443.55/772,252.70
  6. Step 6: Final answer
    x = 590,727.94

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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.