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Finding the Fourth Proportional to 691,698, 954,543.36 and 373,746

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Solution

The fourth proportional to 691,698, 954,543.36 and 373,746 is: 515,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,698 : 954,543.36 = 373,746 : x
  2. Step 2: Convert to fraction form
    691,698/954,543.36 = 373,746/x
  3. Step 3: Cross multiply
    691,698x = 954,543.36 × 373,746
  4. Step 4: Simplify right side
    691,698x = 356,756,762,626.56
  5. Step 5: Solve for x
    x = 356,756,762,626.56/691,698
  6. Step 6: Final answer
    x = 515,769.54

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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.