Home / 815,338.52-1,223,447.57-479,036.01

Finding the Fourth Proportional to 815,338.52, 1,223,447.57 and 479,036.01

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Solution

The fourth proportional to 815,338.52, 1,223,447.57 and 479,036.01 is: 718,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,338.52 : 1,223,447.57 = 479,036.01 : x
  2. Step 2: Convert to fraction form
    815,338.52/1,223,447.57 = 479,036.01/x
  3. Step 3: Cross multiply
    815,338.52x = 1,223,447.57 × 479,036.01
  4. Step 4: Simplify right side
    815,338.52x = 586,075,442,377.00
  5. Step 5: Solve for x
    x = 586,075,442,377.00/815,338.52
  6. Step 6: Final answer
    x = 718,812.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.