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Finding the Fourth Proportional to 873,706.78, 1,310,560.71 and 242,620.66

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Solution

The fourth proportional to 873,706.78, 1,310,560.71 and 242,620.66 is: 363,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,706.78 : 1,310,560.71 = 242,620.66 : x
  2. Step 2: Convert to fraction form
    873,706.78/1,310,560.71 = 242,620.66/x
  3. Step 3: Cross multiply
    873,706.78x = 1,310,560.71 × 242,620.66
  4. Step 4: Simplify right side
    873,706.78x = 317,969,104,430.27
  5. Step 5: Solve for x
    x = 317,969,104,430.27/873,706.78
  6. Step 6: Final answer
    x = 363,931.14

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Double scale
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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.