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Finding the Fourth Proportional to 988,336.50, 1,364,050.71 and 625,794

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Solution

The fourth proportional to 988,336.50, 1,364,050.71 and 625,794 is: 863,688.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,336.50 : 1,364,050.71 = 625,794 : x
  2. Step 2: Convert to fraction form
    988,336.50/1,364,050.71 = 625,794/x
  3. Step 3: Cross multiply
    988,336.50x = 1,364,050.71 × 625,794
  4. Step 4: Simplify right side
    988,336.50x = 853,614,750,013.74
  5. Step 5: Solve for x
    x = 853,614,750,013.74/988,336.50
  6. Step 6: Final answer
    x = 863,688.38

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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.