Home / 1,239.04-1,858.50-623.02

Finding the Fourth Proportional to 1,239.04, 1,858.50 and 623.02

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Solution

The fourth proportional to 1,239.04, 1,858.50 and 623.02 is: 934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.04 : 1,858.50 = 623.02 : x
  2. Step 2: Convert to fraction form
    1,239.04/1,858.50 = 623.02/x
  3. Step 3: Cross multiply
    1,239.04x = 1,858.50 × 623.02
  4. Step 4: Simplify right side
    1,239.04x = 1,157,882.67
  5. Step 5: Solve for x
    x = 1,157,882.67/1,239.04
  6. Step 6: Final answer
    x = 934.50

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Double scale
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1.5x scale

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.