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Finding the Fourth Proportional to 1,349,102.88, 1,861,688.88 and 745,452

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Solution

The fourth proportional to 1,349,102.88, 1,861,688.88 and 745,452 is: 1,028,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,102.88 : 1,861,688.88 = 745,452 : x
  2. Step 2: Convert to fraction form
    1,349,102.88/1,861,688.88 = 745,452/x
  3. Step 3: Cross multiply
    1,349,102.88x = 1,861,688.88 × 745,452
  4. Step 4: Simplify right side
    1,349,102.88x = 1,387,799,698,973.76
  5. Step 5: Solve for x
    x = 1,387,799,698,973.76/1,349,102.88
  6. Step 6: Final answer
    x = 1,028,683.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.