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Finding the Fourth Proportional to 662,807.20, 994,210.80 and 486,097.60

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Solution

The fourth proportional to 662,807.20, 994,210.80 and 486,097.60 is: 729,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,807.20 : 994,210.80 = 486,097.60 : x
  2. Step 2: Convert to fraction form
    662,807.20/994,210.80 = 486,097.60/x
  3. Step 3: Cross multiply
    662,807.20x = 994,210.80 × 486,097.60
  4. Step 4: Simplify right side
    662,807.20x = 483,283,483,774.08
  5. Step 5: Solve for x
    x = 483,283,483,774.08/662,807.20
  6. Step 6: Final answer
    x = 729,146.40

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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.