Home / 521,223.62-720,661.07-456,507.29

Finding the Fourth Proportional to 521,223.62, 720,661.07 and 456,507.29

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Solution

The fourth proportional to 521,223.62, 720,661.07 and 456,507.29 is: 631,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,223.62 : 720,661.07 = 456,507.29 : x
  2. Step 2: Convert to fraction form
    521,223.62/720,661.07 = 456,507.29/x
  3. Step 3: Cross multiply
    521,223.62x = 720,661.07 × 456,507.29
  4. Step 4: Simplify right side
    521,223.62x = 328,987,026,188.36
  5. Step 5: Solve for x
    x = 328,987,026,188.36/521,223.62
  6. Step 6: Final answer
    x = 631,182.12

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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.