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Finding the Fourth Proportional to 922,495.60, 1,384,002.60 and 449,196.40

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Solution

The fourth proportional to 922,495.60, 1,384,002.60 and 449,196.40 is: 673,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,495.60 : 1,384,002.60 = 449,196.40 : x
  2. Step 2: Convert to fraction form
    922,495.60/1,384,002.60 = 449,196.40/x
  3. Step 3: Cross multiply
    922,495.60x = 1,384,002.60 × 449,196.40
  4. Step 4: Simplify right side
    922,495.60x = 621,688,985,510.64
  5. Step 5: Solve for x
    x = 621,688,985,510.64/922,495.60
  6. Step 6: Final answer
    x = 673,920.81

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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.