Home / 790,637.36-1,091,077.92-428,061.12

Finding the Fourth Proportional to 790,637.36, 1,091,077.92 and 428,061.12

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Solution

The fourth proportional to 790,637.36, 1,091,077.92 and 428,061.12 is: 590,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,637.36 : 1,091,077.92 = 428,061.12 : x
  2. Step 2: Convert to fraction form
    790,637.36/1,091,077.92 = 428,061.12/x
  3. Step 3: Cross multiply
    790,637.36x = 1,091,077.92 × 428,061.12
  4. Step 4: Simplify right side
    790,637.36x = 467,048,036,442.47
  5. Step 5: Solve for x
    x = 467,048,036,442.47/790,637.36
  6. Step 6: Final answer
    x = 590,723.46

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Double scale
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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.