Home / 645,798.28-968,172.53-225,369.40

Finding the Fourth Proportional to 645,798.28, 968,172.53 and 225,369.40

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Solution

The fourth proportional to 645,798.28, 968,172.53 and 225,369.40 is: 337,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,798.28 : 968,172.53 = 225,369.40 : x
  2. Step 2: Convert to fraction form
    645,798.28/968,172.53 = 225,369.40/x
  3. Step 3: Cross multiply
    645,798.28x = 968,172.53 × 225,369.40
  4. Step 4: Simplify right side
    645,798.28x = 218,196,462,182.58
  5. Step 5: Solve for x
    x = 218,196,462,182.58/645,798.28
  6. Step 6: Final answer
    x = 337,870.92

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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.