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Finding the Fourth Proportional to 1,329,671, 1,995,622.32 and 690,367.16

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Solution

The fourth proportional to 1,329,671, 1,995,622.32 and 690,367.16 is: 1,036,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,671 : 1,995,622.32 = 690,367.16 : x
  2. Step 2: Convert to fraction form
    1,329,671/1,995,622.32 = 690,367.16/x
  3. Step 3: Cross multiply
    1,329,671x = 1,995,622.32 × 690,367.16
  4. Step 4: Simplify right side
    1,329,671x = 1,377,712,113,491.01
  5. Step 5: Solve for x
    x = 1,377,712,113,491.01/1,329,671
  6. Step 6: Final answer
    x = 1,036,130.08

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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.