Home / 820,920.51-1,132,859.57-458,350.53

Finding the Fourth Proportional to 820,920.51, 1,132,859.57 and 458,350.53

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Solution

The fourth proportional to 820,920.51, 1,132,859.57 and 458,350.53 is: 632,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,920.51 : 1,132,859.57 = 458,350.53 : x
  2. Step 2: Convert to fraction form
    820,920.51/1,132,859.57 = 458,350.53/x
  3. Step 3: Cross multiply
    820,920.51x = 1,132,859.57 × 458,350.53
  4. Step 4: Simplify right side
    820,920.51x = 519,246,782,033.32
  5. Step 5: Solve for x
    x = 519,246,782,033.32/820,920.51
  6. Step 6: Final answer
    x = 632,517.74

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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.