Home / 1,247.07-1,870.60-322.62

Finding the Fourth Proportional to 1,247.07, 1,870.60 and 322.62

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Solution

The fourth proportional to 1,247.07, 1,870.60 and 322.62 is: 483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.07 : 1,870.60 = 322.62 : x
  2. Step 2: Convert to fraction form
    1,247.07/1,870.60 = 322.62/x
  3. Step 3: Cross multiply
    1,247.07x = 1,870.60 × 322.62
  4. Step 4: Simplify right side
    1,247.07x = 603,492.97
  5. Step 5: Solve for x
    x = 603,492.97/1,247.07
  6. Step 6: Final answer
    x = 483.93

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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.