Home / 756,054.20-1,134,081.30-488,365.40

Finding the Fourth Proportional to 756,054.20, 1,134,081.30 and 488,365.40

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Solution

The fourth proportional to 756,054.20, 1,134,081.30 and 488,365.40 is: 732,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,054.20 : 1,134,081.30 = 488,365.40 : x
  2. Step 2: Convert to fraction form
    756,054.20/1,134,081.30 = 488,365.40/x
  3. Step 3: Cross multiply
    756,054.20x = 1,134,081.30 × 488,365.40
  4. Step 4: Simplify right side
    756,054.20x = 553,846,067,707.02
  5. Step 5: Solve for x
    x = 553,846,067,707.02/756,054.20
  6. Step 6: Final answer
    x = 732,548.10

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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.