Home / 790,671.68-1,091,127.36-428,097.92

Finding the Fourth Proportional to 790,671.68, 1,091,127.36 and 428,097.92

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Solution

The fourth proportional to 790,671.68, 1,091,127.36 and 428,097.92 is: 590,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,671.68 : 1,091,127.36 = 428,097.92 : x
  2. Step 2: Convert to fraction form
    790,671.68/1,091,127.36 = 428,097.92/x
  3. Step 3: Cross multiply
    790,671.68x = 1,091,127.36 × 428,097.92
  4. Step 4: Simplify right side
    790,671.68x = 467,109,353,271.09
  5. Step 5: Solve for x
    x = 467,109,353,271.09/790,671.68
  6. Step 6: Final answer
    x = 590,775.37

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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.