Home / 790,895.55-1,091,422.37-428,316.47

Finding the Fourth Proportional to 790,895.55, 1,091,422.37 and 428,316.47

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Solution

The fourth proportional to 790,895.55, 1,091,422.37 and 428,316.47 is: 591,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,895.55 : 1,091,422.37 = 428,316.47 : x
  2. Step 2: Convert to fraction form
    790,895.55/1,091,422.37 = 428,316.47/x
  3. Step 3: Cross multiply
    790,895.55x = 1,091,422.37 × 428,316.47
  4. Step 4: Simplify right side
    790,895.55x = 467,474,172,411.11
  5. Step 5: Solve for x
    x = 467,474,172,411.11/790,895.55
  6. Step 6: Final answer
    x = 591,069.42

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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.