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Finding the Fourth Proportional to 1,156,342.28, 1,734,503.69 and 903,835.16

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Solution

The fourth proportional to 1,156,342.28, 1,734,503.69 and 903,835.16 is: 1,355,745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,342.28 : 1,734,503.69 = 903,835.16 : x
  2. Step 2: Convert to fraction form
    1,156,342.28/1,734,503.69 = 903,835.16/x
  3. Step 3: Cross multiply
    1,156,342.28x = 1,734,503.69 × 903,835.16
  4. Step 4: Simplify right side
    1,156,342.28x = 1,567,705,420,171.74
  5. Step 5: Solve for x
    x = 1,567,705,420,171.74/1,156,342.28
  6. Step 6: Final answer
    x = 1,355,745.13

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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.