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Finding the Fourth Proportional to 736,833.60, 1,105,833.60 and 287,769.60

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Solution

The fourth proportional to 736,833.60, 1,105,833.60 and 287,769.60 is: 431,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,833.60 : 1,105,833.60 = 287,769.60 : x
  2. Step 2: Convert to fraction form
    736,833.60/1,105,833.60 = 287,769.60/x
  3. Step 3: Cross multiply
    736,833.60x = 1,105,833.60 × 287,769.60
  4. Step 4: Simplify right side
    736,833.60x = 318,225,292,738.56
  5. Step 5: Solve for x
    x = 318,225,292,738.56/736,833.60
  6. Step 6: Final answer
    x = 431,882.17

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1.5x scale

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.