Home / 2,911,326.58-4,017,646.61-1,688,357.20

Finding the Fourth Proportional to 2,911,326.58, 4,017,646.61 and 1,688,357.20

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Solution

The fourth proportional to 2,911,326.58, 4,017,646.61 and 1,688,357.20 is: 2,329,942.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,326.58 : 4,017,646.61 = 1,688,357.20 : x
  2. Step 2: Convert to fraction form
    2,911,326.58/4,017,646.61 = 1,688,357.20/x
  3. Step 3: Cross multiply
    2,911,326.58x = 4,017,646.61 × 1,688,357.20
  4. Step 4: Simplify right side
    2,911,326.58x = 6,783,222,581,049.09
  5. Step 5: Solve for x
    x = 6,783,222,581,049.09/2,911,326.58
  6. Step 6: Final answer
    x = 2,329,942.17

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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.