Home / 1,590,032.89-2,195,477.02-1,221,926.96

Finding the Fourth Proportional to 1,590,032.89, 2,195,477.02 and 1,221,926.96

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Solution

The fourth proportional to 1,590,032.89, 2,195,477.02 and 1,221,926.96 is: 1,687,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,032.89 : 2,195,477.02 = 1,221,926.96 : x
  2. Step 2: Convert to fraction form
    1,590,032.89/2,195,477.02 = 1,221,926.96/x
  3. Step 3: Cross multiply
    1,590,032.89x = 2,195,477.02 × 1,221,926.96
  4. Step 4: Simplify right side
    1,590,032.89x = 2,682,712,561,115.86
  5. Step 5: Solve for x
    x = 2,682,712,561,115.86/1,590,032.89
  6. Step 6: Final answer
    x = 1,687,205.70

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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.