Home / 860,359.73-1,187,289.06-478,383.17

Finding the Fourth Proportional to 860,359.73, 1,187,289.06 and 478,383.17

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Solution

The fourth proportional to 860,359.73, 1,187,289.06 and 478,383.17 is: 660,164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,359.73 : 1,187,289.06 = 478,383.17 : x
  2. Step 2: Convert to fraction form
    860,359.73/1,187,289.06 = 478,383.17/x
  3. Step 3: Cross multiply
    860,359.73x = 1,187,289.06 × 478,383.17
  4. Step 4: Simplify right side
    860,359.73x = 567,979,104,229.12
  5. Step 5: Solve for x
    x = 567,979,104,229.12/860,359.73
  6. Step 6: Final answer
    x = 660,164.68

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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.