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Finding the Fourth Proportional to 1,157,895.60, 1,738,398.60 and 739,028.40

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Solution

The fourth proportional to 1,157,895.60, 1,738,398.60 and 739,028.40 is: 1,109,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,895.60 : 1,738,398.60 = 739,028.40 : x
  2. Step 2: Convert to fraction form
    1,157,895.60/1,738,398.60 = 739,028.40/x
  3. Step 3: Cross multiply
    1,157,895.60x = 1,738,398.60 × 739,028.40
  4. Step 4: Simplify right side
    1,157,895.60x = 1,284,725,935,920.24
  5. Step 5: Solve for x
    x = 1,284,725,935,920.24/1,157,895.60
  6. Step 6: Final answer
    x = 1,109,535.21

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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.