Home / 822,434.73-1,135,201.28-478,351.59

Finding the Fourth Proportional to 822,434.73, 1,135,201.28 and 478,351.59

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Solution

The fourth proportional to 822,434.73, 1,135,201.28 and 478,351.59 is: 660,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,434.73 : 1,135,201.28 = 478,351.59 : x
  2. Step 2: Convert to fraction form
    822,434.73/1,135,201.28 = 478,351.59/x
  3. Step 3: Cross multiply
    822,434.73x = 1,135,201.28 × 478,351.59
  4. Step 4: Simplify right side
    822,434.73x = 543,025,334,866.28
  5. Step 5: Solve for x
    x = 543,025,334,866.28/822,434.73
  6. Step 6: Final answer
    x = 660,265.57

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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.