Home / 750,644.92-1,035,632.64-428,123.08

Finding the Fourth Proportional to 750,644.92, 1,035,632.64 and 428,123.08

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Solution

The fourth proportional to 750,644.92, 1,035,632.64 and 428,123.08 is: 590,663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,644.92 : 1,035,632.64 = 428,123.08 : x
  2. Step 2: Convert to fraction form
    750,644.92/1,035,632.64 = 428,123.08/x
  3. Step 3: Cross multiply
    750,644.92x = 1,035,632.64 × 428,123.08
  4. Step 4: Simplify right side
    750,644.92x = 443,378,235,585.33
  5. Step 5: Solve for x
    x = 443,378,235,585.33/750,644.92
  6. Step 6: Final answer
    x = 590,663.07

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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.