Home / 887,834.50-1,225,211.61-485,426.50

Finding the Fourth Proportional to 887,834.50, 1,225,211.61 and 485,426.50

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Solution

The fourth proportional to 887,834.50, 1,225,211.61 and 485,426.50 is: 669,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,834.50 : 1,225,211.61 = 485,426.50 : x
  2. Step 2: Convert to fraction form
    887,834.50/1,225,211.61 = 485,426.50/x
  3. Step 3: Cross multiply
    887,834.50x = 1,225,211.61 × 485,426.50
  4. Step 4: Simplify right side
    887,834.50x = 594,750,183,601.67
  5. Step 5: Solve for x
    x = 594,750,183,601.67/887,834.50
  6. Step 6: Final answer
    x = 669,888.57

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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.