Home / 738,115.20-1,107,172.80-264,848.40

Finding the Fourth Proportional to 738,115.20, 1,107,172.80 and 264,848.40

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Solution

The fourth proportional to 738,115.20, 1,107,172.80 and 264,848.40 is: 397,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,115.20 : 1,107,172.80 = 264,848.40 : x
  2. Step 2: Convert to fraction form
    738,115.20/1,107,172.80 = 264,848.40/x
  3. Step 3: Cross multiply
    738,115.20x = 1,107,172.80 × 264,848.40
  4. Step 4: Simplify right side
    738,115.20x = 293,232,944,603.52
  5. Step 5: Solve for x
    x = 293,232,944,603.52/738,115.20
  6. Step 6: Final answer
    x = 397,272.60

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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.