Home / 736,783.20-1,105,174.80-648,209.70

Finding the Fourth Proportional to 736,783.20, 1,105,174.80 and 648,209.70

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Solution

The fourth proportional to 736,783.20, 1,105,174.80 and 648,209.70 is: 972,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,783.20 : 1,105,174.80 = 648,209.70 : x
  2. Step 2: Convert to fraction form
    736,783.20/1,105,174.80 = 648,209.70/x
  3. Step 3: Cross multiply
    736,783.20x = 1,105,174.80 × 648,209.70
  4. Step 4: Simplify right side
    736,783.20x = 716,385,025,555.56
  5. Step 5: Solve for x
    x = 716,385,025,555.56/736,783.20
  6. Step 6: Final answer
    x = 972,314.55

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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.