Home / 738,259.20-1,107,388.80-239,623.20

Finding the Fourth Proportional to 738,259.20, 1,107,388.80 and 239,623.20

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Solution

The fourth proportional to 738,259.20, 1,107,388.80 and 239,623.20 is: 359,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,259.20 : 1,107,388.80 = 239,623.20 : x
  2. Step 2: Convert to fraction form
    738,259.20/1,107,388.80 = 239,623.20/x
  3. Step 3: Cross multiply
    738,259.20x = 1,107,388.80 × 239,623.20
  4. Step 4: Simplify right side
    738,259.20x = 265,356,047,900.16
  5. Step 5: Solve for x
    x = 265,356,047,900.16/738,259.20
  6. Step 6: Final answer
    x = 359,434.80

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Double scale
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Similar ratio
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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.