Home / 766,186.76-1,148,491.57-339,923.33

Finding the Fourth Proportional to 766,186.76, 1,148,491.57 and 339,923.33

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Solution

The fourth proportional to 766,186.76, 1,148,491.57 and 339,923.33 is: 509,535.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,186.76 : 1,148,491.57 = 339,923.33 : x
  2. Step 2: Convert to fraction form
    766,186.76/1,148,491.57 = 339,923.33/x
  3. Step 3: Cross multiply
    766,186.76x = 1,148,491.57 × 339,923.33
  4. Step 4: Simplify right side
    766,186.76x = 390,399,071,509.25
  5. Step 5: Solve for x
    x = 390,399,071,509.25/766,186.76
  6. Step 6: Final answer
    x = 509,535.13

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Double scale
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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.