Home / 916,415.20-1,374,622.80-242,495.20

Finding the Fourth Proportional to 916,415.20, 1,374,622.80 and 242,495.20

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Solution

The fourth proportional to 916,415.20, 1,374,622.80 and 242,495.20 is: 363,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,415.20 : 1,374,622.80 = 242,495.20 : x
  2. Step 2: Convert to fraction form
    916,415.20/1,374,622.80 = 242,495.20/x
  3. Step 3: Cross multiply
    916,415.20x = 1,374,622.80 × 242,495.20
  4. Step 4: Simplify right side
    916,415.20x = 333,339,430,810.56
  5. Step 5: Solve for x
    x = 333,339,430,810.56/916,415.20
  6. Step 6: Final answer
    x = 363,742.80

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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.