Home / 914,981.35-1,372,848.43-402,382.68

Finding the Fourth Proportional to 914,981.35, 1,372,848.43 and 402,382.68

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Solution

The fourth proportional to 914,981.35, 1,372,848.43 and 402,382.68 is: 603,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,981.35 : 1,372,848.43 = 402,382.68 : x
  2. Step 2: Convert to fraction form
    914,981.35/1,372,848.43 = 402,382.68/x
  3. Step 3: Cross multiply
    914,981.35x = 1,372,848.43 × 402,382.68
  4. Step 4: Simplify right side
    914,981.35x = 552,410,430,497.19
  5. Step 5: Solve for x
    x = 552,410,430,497.19/914,981.35
  6. Step 6: Final answer
    x = 603,739.55

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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.