Home / 743,641.56-1,115,488.80-238,136.86

Finding the Fourth Proportional to 743,641.56, 1,115,488.80 and 238,136.86

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Solution

The fourth proportional to 743,641.56, 1,115,488.80 and 238,136.86 is: 357,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,641.56 : 1,115,488.80 = 238,136.86 : x
  2. Step 2: Convert to fraction form
    743,641.56/1,115,488.80 = 238,136.86/x
  3. Step 3: Cross multiply
    743,641.56x = 1,115,488.80 × 238,136.86
  4. Step 4: Simplify right side
    743,641.56x = 265,638,993,429.04
  5. Step 5: Solve for x
    x = 265,638,993,429.04/743,641.56
  6. Step 6: Final answer
    x = 357,213.76

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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.