Home / 1,768,173.72-2,652,279.06-1,415,430.12

Finding the Fourth Proportional to 1,768,173.72, 2,652,279.06 and 1,415,430.12

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Solution

The fourth proportional to 1,768,173.72, 2,652,279.06 and 1,415,430.12 is: 2,123,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,173.72 : 2,652,279.06 = 1,415,430.12 : x
  2. Step 2: Convert to fraction form
    1,768,173.72/2,652,279.06 = 1,415,430.12/x
  3. Step 3: Cross multiply
    1,768,173.72x = 2,652,279.06 × 1,415,430.12
  4. Step 4: Simplify right side
    1,768,173.72x = 3,754,115,668,169.29
  5. Step 5: Solve for x
    x = 3,754,115,668,169.29/1,768,173.72
  6. Step 6: Final answer
    x = 2,123,159.97

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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.