Home / 744,129-1,116,193.50-218,817

Finding the Fourth Proportional to 744,129, 1,116,193.50 and 218,817

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Solution

The fourth proportional to 744,129, 1,116,193.50 and 218,817 is: 328,225.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,129 : 1,116,193.50 = 218,817 : x
  2. Step 2: Convert to fraction form
    744,129/1,116,193.50 = 218,817/x
  3. Step 3: Cross multiply
    744,129x = 1,116,193.50 × 218,817
  4. Step 4: Simplify right side
    744,129x = 244,242,113,089.50
  5. Step 5: Solve for x
    x = 244,242,113,089.50/744,129
  6. Step 6: Final answer
    x = 328,225.50

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Double scale
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Similar ratio
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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.