Home / 1,503,639.29-2,075,019.99-815,309.89

Finding the Fourth Proportional to 1,503,639.29, 2,075,019.99 and 815,309.89

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Solution

The fourth proportional to 1,503,639.29, 2,075,019.99 and 815,309.89 is: 1,125,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,639.29 : 2,075,019.99 = 815,309.89 : x
  2. Step 2: Convert to fraction form
    1,503,639.29/2,075,019.99 = 815,309.89/x
  3. Step 3: Cross multiply
    1,503,639.29x = 2,075,019.99 × 815,309.89
  4. Step 4: Simplify right side
    1,503,639.29x = 1,691,784,319,794.70
  5. Step 5: Solve for x
    x = 1,691,784,319,794.70/1,503,639.29
  6. Step 6: Final answer
    x = 1,125,126.44

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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.