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Finding the Fourth Proportional to 556,288.26, 767,804.85 and 326,872.50

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Solution

The fourth proportional to 556,288.26, 767,804.85 and 326,872.50 is: 451,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,288.26 : 767,804.85 = 326,872.50 : x
  2. Step 2: Convert to fraction form
    556,288.26/767,804.85 = 326,872.50/x
  3. Step 3: Cross multiply
    556,288.26x = 767,804.85 × 326,872.50
  4. Step 4: Simplify right side
    556,288.26x = 250,974,290,831.63
  5. Step 5: Solve for x
    x = 250,974,290,831.63/556,288.26
  6. Step 6: Final answer
    x = 451,158.70

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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.