Home / 659,943.07-910,721.46-358,137.07

Finding the Fourth Proportional to 659,943.07, 910,721.46 and 358,137.07

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Solution

The fourth proportional to 659,943.07, 910,721.46 and 358,137.07 is: 494,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,943.07 : 910,721.46 = 358,137.07 : x
  2. Step 2: Convert to fraction form
    659,943.07/910,721.46 = 358,137.07/x
  3. Step 3: Cross multiply
    659,943.07x = 910,721.46 × 358,137.07
  4. Step 4: Simplify right side
    659,943.07x = 326,163,115,270.52
  5. Step 5: Solve for x
    x = 326,163,115,270.52/659,943.07
  6. Step 6: Final answer
    x = 494,229.17

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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.