Home / 1,093,531.20-1,640,296.80-671,438.40

Finding the Fourth Proportional to 1,093,531.20, 1,640,296.80 and 671,438.40

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Solution

The fourth proportional to 1,093,531.20, 1,640,296.80 and 671,438.40 is: 1,007,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,531.20 : 1,640,296.80 = 671,438.40 : x
  2. Step 2: Convert to fraction form
    1,093,531.20/1,640,296.80 = 671,438.40/x
  3. Step 3: Cross multiply
    1,093,531.20x = 1,640,296.80 × 671,438.40
  4. Step 4: Simplify right side
    1,093,531.20x = 1,101,358,258,917.12
  5. Step 5: Solve for x
    x = 1,101,358,258,917.12/1,093,531.20
  6. Step 6: Final answer
    x = 1,007,157.60

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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.