Home / 860,904.80-1,187,727.73-538,492.40

Finding the Fourth Proportional to 860,904.80, 1,187,727.73 and 538,492.40

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Solution

The fourth proportional to 860,904.80, 1,187,727.73 and 538,492.40 is: 742,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,904.80 : 1,187,727.73 = 538,492.40 : x
  2. Step 2: Convert to fraction form
    860,904.80/1,187,727.73 = 538,492.40/x
  3. Step 3: Cross multiply
    860,904.80x = 1,187,727.73 × 538,492.40
  4. Step 4: Simplify right side
    860,904.80x = 639,582,348,589.38
  5. Step 5: Solve for x
    x = 639,582,348,589.38/860,904.80
  6. Step 6: Final answer
    x = 742,918.79

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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.