Home / 645,870.96-968,811.84-225,146.16

Finding the Fourth Proportional to 645,870.96, 968,811.84 and 225,146.16

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Solution

The fourth proportional to 645,870.96, 968,811.84 and 225,146.16 is: 337,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,870.96 : 968,811.84 = 225,146.16 : x
  2. Step 2: Convert to fraction form
    645,870.96/968,811.84 = 225,146.16/x
  3. Step 3: Cross multiply
    645,870.96x = 968,811.84 × 225,146.16
  4. Step 4: Simplify right side
    645,870.96x = 218,124,265,538.53
  5. Step 5: Solve for x
    x = 218,124,265,538.53/645,870.96
  6. Step 6: Final answer
    x = 337,721.12

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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.