Home / 646,187.84-969,437.28-272,317.76

Finding the Fourth Proportional to 646,187.84, 969,437.28 and 272,317.76

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Solution

The fourth proportional to 646,187.84, 969,437.28 and 272,317.76 is: 408,542.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,187.84 : 969,437.28 = 272,317.76 : x
  2. Step 2: Convert to fraction form
    646,187.84/969,437.28 = 272,317.76/x
  3. Step 3: Cross multiply
    646,187.84x = 969,437.28 × 272,317.76
  4. Step 4: Simplify right side
    646,187.84x = 263,994,988,550.09
  5. Step 5: Solve for x
    x = 263,994,988,550.09/646,187.84
  6. Step 6: Final answer
    x = 408,542.18

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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.