Home / 815,699.39-1,125,633.84-453,146.04

Finding the Fourth Proportional to 815,699.39, 1,125,633.84 and 453,146.04

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Solution

The fourth proportional to 815,699.39, 1,125,633.84 and 453,146.04 is: 625,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,699.39 : 1,125,633.84 = 453,146.04 : x
  2. Step 2: Convert to fraction form
    815,699.39/1,125,633.84 = 453,146.04/x
  3. Step 3: Cross multiply
    815,699.39x = 1,125,633.84 × 453,146.04
  4. Step 4: Simplify right side
    815,699.39x = 510,076,517,085.99
  5. Step 5: Solve for x
    x = 510,076,517,085.99/815,699.39
  6. Step 6: Final answer
    x = 625,324.14

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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.