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Finding the Fourth Proportional to 702,803.60, 969,857.16 and 380,511.08

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Solution

The fourth proportional to 702,803.60, 969,857.16 and 380,511.08 is: 525,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,803.60 : 969,857.16 = 380,511.08 : x
  2. Step 2: Convert to fraction form
    702,803.60/969,857.16 = 380,511.08/x
  3. Step 3: Cross multiply
    702,803.60x = 969,857.16 × 380,511.08
  4. Step 4: Simplify right side
    702,803.60x = 369,041,395,397.33
  5. Step 5: Solve for x
    x = 369,041,395,397.33/702,803.60
  6. Step 6: Final answer
    x = 525,098.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.