Home / 677,430.57-1,016,146.32-172,029.45

Finding the Fourth Proportional to 677,430.57, 1,016,146.32 and 172,029.45

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Solution

The fourth proportional to 677,430.57, 1,016,146.32 and 172,029.45 is: 258,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,430.57 : 1,016,146.32 = 172,029.45 : x
  2. Step 2: Convert to fraction form
    677,430.57/1,016,146.32 = 172,029.45/x
  3. Step 3: Cross multiply
    677,430.57x = 1,016,146.32 × 172,029.45
  4. Step 4: Simplify right side
    677,430.57x = 174,807,095,714.56
  5. Step 5: Solve for x
    x = 174,807,095,714.56/677,430.57
  6. Step 6: Final answer
    x = 258,044.30

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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.