Home / 1,073,548.19-1,480,878.79-643,578.53

Finding the Fourth Proportional to 1,073,548.19, 1,480,878.79 and 643,578.53

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Solution

The fourth proportional to 1,073,548.19, 1,480,878.79 and 643,578.53 is: 887,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,548.19 : 1,480,878.79 = 643,578.53 : x
  2. Step 2: Convert to fraction form
    1,073,548.19/1,480,878.79 = 643,578.53/x
  3. Step 3: Cross multiply
    1,073,548.19x = 1,480,878.79 × 643,578.53
  4. Step 4: Simplify right side
    1,073,548.19x = 953,061,785,763.04
  5. Step 5: Solve for x
    x = 953,061,785,763.04/1,073,548.19
  6. Step 6: Final answer
    x = 887,768.05

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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.