Home / 805,187.50-1,111,158.75-465,677.62

Finding the Fourth Proportional to 805,187.50, 1,111,158.75 and 465,677.62

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Solution

The fourth proportional to 805,187.50, 1,111,158.75 and 465,677.62 is: 642,635.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,187.50 : 1,111,158.75 = 465,677.62 : x
  2. Step 2: Convert to fraction form
    805,187.50/1,111,158.75 = 465,677.62/x
  3. Step 3: Cross multiply
    805,187.50x = 1,111,158.75 × 465,677.62
  4. Step 4: Simplify right side
    805,187.50x = 517,441,762,142.18
  5. Step 5: Solve for x
    x = 517,441,762,142.18/805,187.50
  6. Step 6: Final answer
    x = 642,635.12

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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.