Home / 1,155,022.47-1,593,885.11-638,742.87

Finding the Fourth Proportional to 1,155,022.47, 1,593,885.11 and 638,742.87

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Solution

The fourth proportional to 1,155,022.47, 1,593,885.11 and 638,742.87 is: 881,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,022.47 : 1,593,885.11 = 638,742.87 : x
  2. Step 2: Convert to fraction form
    1,155,022.47/1,593,885.11 = 638,742.87/x
  3. Step 3: Cross multiply
    1,155,022.47x = 1,593,885.11 × 638,742.87
  4. Step 4: Simplify right side
    1,155,022.47x = 1,018,082,746,417.95
  5. Step 5: Solve for x
    x = 1,018,082,746,417.95/1,155,022.47
  6. Step 6: Final answer
    x = 881,439.78

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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.