Home / 814,507.65-1,123,734.69-470,333.79

Finding the Fourth Proportional to 814,507.65, 1,123,734.69 and 470,333.79

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Solution

The fourth proportional to 814,507.65, 1,123,734.69 and 470,333.79 is: 648,895.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,507.65 : 1,123,734.69 = 470,333.79 : x
  2. Step 2: Convert to fraction form
    814,507.65/1,123,734.69 = 470,333.79/x
  3. Step 3: Cross multiply
    814,507.65x = 1,123,734.69 × 470,333.79
  4. Step 4: Simplify right side
    814,507.65x = 528,530,395,702.18
  5. Step 5: Solve for x
    x = 528,530,395,702.18/814,507.65
  6. Step 6: Final answer
    x = 648,895.56

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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.