Home / 811,061.76-1,119,253.56-448,477.68

Finding the Fourth Proportional to 811,061.76, 1,119,253.56 and 448,477.68

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Solution

The fourth proportional to 811,061.76, 1,119,253.56 and 448,477.68 is: 618,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,061.76 : 1,119,253.56 = 448,477.68 : x
  2. Step 2: Convert to fraction form
    811,061.76/1,119,253.56 = 448,477.68/x
  3. Step 3: Cross multiply
    811,061.76x = 1,119,253.56 × 448,477.68
  4. Step 4: Simplify right side
    811,061.76x = 501,960,239,920.54
  5. Step 5: Solve for x
    x = 501,960,239,920.54/811,061.76
  6. Step 6: Final answer
    x = 618,892.75

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Double scale
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1.5x scale

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.