Home / 1,933,440-2,900,776.32-811,207.68

Finding the Fourth Proportional to 1,933,440, 2,900,776.32 and 811,207.68

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Solution

The fourth proportional to 1,933,440, 2,900,776.32 and 811,207.68 is: 1,217,070.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933,440 : 2,900,776.32 = 811,207.68 : x
  2. Step 2: Convert to fraction form
    1,933,440/2,900,776.32 = 811,207.68/x
  3. Step 3: Cross multiply
    1,933,440x = 2,900,776.32 × 811,207.68
  4. Step 4: Simplify right side
    1,933,440x = 2,353,132,028,746.14
  5. Step 5: Solve for x
    x = 2,353,132,028,746.14/1,933,440
  6. Step 6: Final answer
    x = 1,217,070.11

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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.