Home / 878,756.50-1,318,135.02-213,908.50

Finding the Fourth Proportional to 878,756.50, 1,318,135.02 and 213,908.50

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Solution

The fourth proportional to 878,756.50, 1,318,135.02 and 213,908.50 is: 320,862.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,756.50 : 1,318,135.02 = 213,908.50 : x
  2. Step 2: Convert to fraction form
    878,756.50/1,318,135.02 = 213,908.50/x
  3. Step 3: Cross multiply
    878,756.50x = 1,318,135.02 × 213,908.50
  4. Step 4: Simplify right side
    878,756.50x = 281,960,284,925.67
  5. Step 5: Solve for x
    x = 281,960,284,925.67/878,756.50
  6. Step 6: Final answer
    x = 320,862.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.