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Finding the Fourth Proportional to 1,156,341.78, 1,734,502.94 and 903,834.66

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Solution

The fourth proportional to 1,156,341.78, 1,734,502.94 and 903,834.66 is: 1,355,744.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,341.78 : 1,734,502.94 = 903,834.66 : x
  2. Step 2: Convert to fraction form
    1,156,341.78/1,734,502.94 = 903,834.66/x
  3. Step 3: Cross multiply
    1,156,341.78x = 1,734,502.94 × 903,834.66
  4. Step 4: Simplify right side
    1,156,341.78x = 1,567,703,875,043.90
  5. Step 5: Solve for x
    x = 1,567,703,875,043.90/1,156,341.78
  6. Step 6: Final answer
    x = 1,355,744.38

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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.