Home / 815,705.39-1,125,642.12-453,152.04

Finding the Fourth Proportional to 815,705.39, 1,125,642.12 and 453,152.04

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Solution

The fourth proportional to 815,705.39, 1,125,642.12 and 453,152.04 is: 625,332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,705.39 : 1,125,642.12 = 453,152.04 : x
  2. Step 2: Convert to fraction form
    815,705.39/1,125,642.12 = 453,152.04/x
  3. Step 3: Cross multiply
    815,705.39x = 1,125,642.12 × 453,152.04
  4. Step 4: Simplify right side
    815,705.39x = 510,087,022,987.93
  5. Step 5: Solve for x
    x = 510,087,022,987.93/815,705.39
  6. Step 6: Final answer
    x = 625,332.42

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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.