Home / 790,641.12-1,091,071.52-428,062.04

Finding the Fourth Proportional to 790,641.12, 1,091,071.52 and 428,062.04

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Solution

The fourth proportional to 790,641.12, 1,091,071.52 and 428,062.04 is: 590,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,641.12 : 1,091,071.52 = 428,062.04 : x
  2. Step 2: Convert to fraction form
    790,641.12/1,091,071.52 = 428,062.04/x
  3. Step 3: Cross multiply
    790,641.12x = 1,091,071.52 × 428,062.04
  4. Step 4: Simplify right side
    790,641.12x = 467,046,293,041.43
  5. Step 5: Solve for x
    x = 467,046,293,041.43/790,641.12
  6. Step 6: Final answer
    x = 590,718.45

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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.