Home / 1,690,675.29-2,333,160.09-916,330.86

Finding the Fourth Proportional to 1,690,675.29, 2,333,160.09 and 916,330.86

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Solution

The fourth proportional to 1,690,675.29, 2,333,160.09 and 916,330.86 is: 1,264,551.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,675.29 : 2,333,160.09 = 916,330.86 : x
  2. Step 2: Convert to fraction form
    1,690,675.29/2,333,160.09 = 916,330.86/x
  3. Step 3: Cross multiply
    1,690,675.29x = 2,333,160.09 × 916,330.86
  4. Step 4: Simplify right side
    1,690,675.29x = 2,137,946,591,787.38
  5. Step 5: Solve for x
    x = 2,137,946,591,787.38/1,690,675.29
  6. Step 6: Final answer
    x = 1,264,551.87

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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.