Home / 2,689,670.22-3,711,746.31-1,528,118.55

Finding the Fourth Proportional to 2,689,670.22, 3,711,746.31 and 1,528,118.55

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Solution

The fourth proportional to 2,689,670.22, 3,711,746.31 and 1,528,118.55 is: 2,108,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,670.22 : 3,711,746.31 = 1,528,118.55 : x
  2. Step 2: Convert to fraction form
    2,689,670.22/3,711,746.31 = 1,528,118.55/x
  3. Step 3: Cross multiply
    2,689,670.22x = 3,711,746.31 × 1,528,118.55
  4. Step 4: Simplify right side
    2,689,670.22x = 5,671,988,389,205.05
  5. Step 5: Solve for x
    x = 5,671,988,389,205.05/2,689,670.22
  6. Step 6: Final answer
    x = 2,108,804.40

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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.