Home / 662,021.84-912,736.20-480,996.56

Finding the Fourth Proportional to 662,021.84, 912,736.20 and 480,996.56

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Solution

The fourth proportional to 662,021.84, 912,736.20 and 480,996.56 is: 663,154.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,021.84 : 912,736.20 = 480,996.56 : x
  2. Step 2: Convert to fraction form
    662,021.84/912,736.20 = 480,996.56/x
  3. Step 3: Cross multiply
    662,021.84x = 912,736.20 × 480,996.56
  4. Step 4: Simplify right side
    662,021.84x = 439,022,972,387.47
  5. Step 5: Solve for x
    x = 439,022,972,387.47/662,021.84
  6. Step 6: Final answer
    x = 663,154.82

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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.