Home / 790,943.93-1,091,497.19-428,359.49

Finding the Fourth Proportional to 790,943.93, 1,091,497.19 and 428,359.49

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Solution

The fourth proportional to 790,943.93, 1,091,497.19 and 428,359.49 is: 591,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,943.93 : 1,091,497.19 = 428,359.49 : x
  2. Step 2: Convert to fraction form
    790,943.93/1,091,497.19 = 428,359.49/x
  3. Step 3: Cross multiply
    790,943.93x = 1,091,497.19 × 428,359.49
  4. Step 4: Simplify right side
    790,943.93x = 467,553,176,741.07
  5. Step 5: Solve for x
    x = 467,553,176,741.07/790,943.93
  6. Step 6: Final answer
    x = 591,133.15

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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.