Home / 1,261,089.30-1,740,345.23-688,160.91

Finding the Fourth Proportional to 1,261,089.30, 1,740,345.23 and 688,160.91

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Solution

The fourth proportional to 1,261,089.30, 1,740,345.23 and 688,160.91 is: 949,684.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,089.30 : 1,740,345.23 = 688,160.91 : x
  2. Step 2: Convert to fraction form
    1,261,089.30/1,740,345.23 = 688,160.91/x
  3. Step 3: Cross multiply
    1,261,089.30x = 1,740,345.23 × 688,160.91
  4. Step 4: Simplify right side
    1,261,089.30x = 1,197,637,557,190.96
  5. Step 5: Solve for x
    x = 1,197,637,557,190.96/1,261,089.30
  6. Step 6: Final answer
    x = 949,684.97

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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.