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Finding the Fourth Proportional to 873,800.70, 1,310,701.05 and 242,720.70

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Solution

The fourth proportional to 873,800.70, 1,310,701.05 and 242,720.70 is: 364,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,800.70 : 1,310,701.05 = 242,720.70 : x
  2. Step 2: Convert to fraction form
    873,800.70/1,310,701.05 = 242,720.70/x
  3. Step 3: Cross multiply
    873,800.70x = 1,310,701.05 × 242,720.70
  4. Step 4: Simplify right side
    873,800.70x = 318,134,276,346.74
  5. Step 5: Solve for x
    x = 318,134,276,346.74/873,800.70
  6. Step 6: Final answer
    x = 364,081.05

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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.