Home / 781,194.80-1,078,057.32-458,918.48

Finding the Fourth Proportional to 781,194.80, 1,078,057.32 and 458,918.48

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Solution

The fourth proportional to 781,194.80, 1,078,057.32 and 458,918.48 is: 633,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,194.80 : 1,078,057.32 = 458,918.48 : x
  2. Step 2: Convert to fraction form
    781,194.80/1,078,057.32 = 458,918.48/x
  3. Step 3: Cross multiply
    781,194.80x = 1,078,057.32 × 458,918.48
  4. Step 4: Simplify right side
    781,194.80x = 494,740,426,647.27
  5. Step 5: Solve for x
    x = 494,740,426,647.27/781,194.80
  6. Step 6: Final answer
    x = 633,312.49

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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.