Home / 1,230,221.74-1,697,667.50-721,263.10

Finding the Fourth Proportional to 1,230,221.74, 1,697,667.50 and 721,263.10

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Solution

The fourth proportional to 1,230,221.74, 1,697,667.50 and 721,263.10 is: 995,320.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,221.74 : 1,697,667.50 = 721,263.10 : x
  2. Step 2: Convert to fraction form
    1,230,221.74/1,697,667.50 = 721,263.10/x
  3. Step 3: Cross multiply
    1,230,221.74x = 1,697,667.50 × 721,263.10
  4. Step 4: Simplify right side
    1,230,221.74x = 1,224,464,923,819.25
  5. Step 5: Solve for x
    x = 1,224,464,923,819.25/1,230,221.74
  6. Step 6: Final answer
    x = 995,320.51

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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.