Home / 1,117,732.40-1,542,507.91-627,788.10

Finding the Fourth Proportional to 1,117,732.40, 1,542,507.91 and 627,788.10

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Solution

The fourth proportional to 1,117,732.40, 1,542,507.91 and 627,788.10 is: 866,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,732.40 : 1,542,507.91 = 627,788.10 : x
  2. Step 2: Convert to fraction form
    1,117,732.40/1,542,507.91 = 627,788.10/x
  3. Step 3: Cross multiply
    1,117,732.40x = 1,542,507.91 × 627,788.10
  4. Step 4: Simplify right side
    1,117,732.40x = 968,368,114,268.81
  5. Step 5: Solve for x
    x = 968,368,114,268.81/1,117,732.40
  6. Step 6: Final answer
    x = 866,368.48

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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.