Home / 790,710.80-1,091,181.51-428,134.95

Finding the Fourth Proportional to 790,710.80, 1,091,181.51 and 428,134.95

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Solution

The fourth proportional to 790,710.80, 1,091,181.51 and 428,134.95 is: 590,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,710.80 : 1,091,181.51 = 428,134.95 : x
  2. Step 2: Convert to fraction form
    790,710.80/1,091,181.51 = 428,134.95/x
  3. Step 3: Cross multiply
    790,710.80x = 1,091,181.51 × 428,134.95
  4. Step 4: Simplify right side
    790,710.80x = 467,172,941,224.78
  5. Step 5: Solve for x
    x = 467,172,941,224.78/790,710.80
  6. Step 6: Final answer
    x = 590,826.56

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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.