Home / 756,133.20-1,134,199.80-488,444.40

Finding the Fourth Proportional to 756,133.20, 1,134,199.80 and 488,444.40

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Solution

The fourth proportional to 756,133.20, 1,134,199.80 and 488,444.40 is: 732,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,133.20 : 1,134,199.80 = 488,444.40 : x
  2. Step 2: Convert to fraction form
    756,133.20/1,134,199.80 = 488,444.40/x
  3. Step 3: Cross multiply
    756,133.20x = 1,134,199.80 × 488,444.40
  4. Step 4: Simplify right side
    756,133.20x = 553,993,540,791.12
  5. Step 5: Solve for x
    x = 553,993,540,791.12/756,133.20
  6. Step 6: Final answer
    x = 732,666.60

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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.