Home / 1,290,250.08-1,780,590.74-709,517.52

Finding the Fourth Proportional to 1,290,250.08, 1,780,590.74 and 709,517.52

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Solution

The fourth proportional to 1,290,250.08, 1,780,590.74 and 709,517.52 is: 979,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,250.08 : 1,780,590.74 = 709,517.52 : x
  2. Step 2: Convert to fraction form
    1,290,250.08/1,780,590.74 = 709,517.52/x
  3. Step 3: Cross multiply
    1,290,250.08x = 1,780,590.74 × 709,517.52
  4. Step 4: Simplify right side
    1,290,250.08x = 1,263,360,322,432.18
  5. Step 5: Solve for x
    x = 1,263,360,322,432.18/1,290,250.08
  6. Step 6: Final answer
    x = 979,159.27

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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.