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Finding the Fourth Proportional to 1,156,890.87, 1,736,000.47 and 903,460.10

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Solution

The fourth proportional to 1,156,890.87, 1,736,000.47 and 903,460.10 is: 1,355,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,890.87 : 1,736,000.47 = 903,460.10 : x
  2. Step 2: Convert to fraction form
    1,156,890.87/1,736,000.47 = 903,460.10/x
  3. Step 3: Cross multiply
    1,156,890.87x = 1,736,000.47 × 903,460.10
  4. Step 4: Simplify right side
    1,156,890.87x = 1,568,407,149,546.24
  5. Step 5: Solve for x
    x = 1,568,407,149,546.24/1,156,890.87
  6. Step 6: Final answer
    x = 1,355,708.81

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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.