Home / 1,574,822.91-2,172,095.22-1,187,654.62

Finding the Fourth Proportional to 1,574,822.91, 2,172,095.22 and 1,187,654.62

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Solution

The fourth proportional to 1,574,822.91, 2,172,095.22 and 1,187,654.62 is: 1,638,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574,822.91 : 2,172,095.22 = 1,187,654.62 : x
  2. Step 2: Convert to fraction form
    1,574,822.91/2,172,095.22 = 1,187,654.62/x
  3. Step 3: Cross multiply
    1,574,822.91x = 2,172,095.22 × 1,187,654.62
  4. Step 4: Simplify right side
    1,574,822.91x = 2,579,698,932,661.45
  5. Step 5: Solve for x
    x = 2,579,698,932,661.45/1,574,822.91
  6. Step 6: Final answer
    x = 1,638,088.27

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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.