Home / 678,688.53-1,016,482.37-323,951.67

Finding the Fourth Proportional to 678,688.53, 1,016,482.37 and 323,951.67

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Solution

The fourth proportional to 678,688.53, 1,016,482.37 and 323,951.67 is: 485,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,688.53 : 1,016,482.37 = 323,951.67 : x
  2. Step 2: Convert to fraction form
    678,688.53/1,016,482.37 = 323,951.67/x
  3. Step 3: Cross multiply
    678,688.53x = 1,016,482.37 × 323,951.67
  4. Step 4: Simplify right side
    678,688.53x = 329,291,159,667.30
  5. Step 5: Solve for x
    x = 329,291,159,667.30/678,688.53
  6. Step 6: Final answer
    x = 485,187.45

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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.