Home / 2,116,445.86-2,920,718.96-1,245,473.11

Finding the Fourth Proportional to 2,116,445.86, 2,920,718.96 and 1,245,473.11

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Solution

The fourth proportional to 2,116,445.86, 2,920,718.96 and 1,245,473.11 is: 1,718,766.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,445.86 : 2,920,718.96 = 1,245,473.11 : x
  2. Step 2: Convert to fraction form
    2,116,445.86/2,920,718.96 = 1,245,473.11/x
  3. Step 3: Cross multiply
    2,116,445.86x = 2,920,718.96 × 1,245,473.11
  4. Step 4: Simplify right side
    2,116,445.86x = 3,637,676,926,547.17
  5. Step 5: Solve for x
    x = 3,637,676,926,547.17/2,116,445.86
  6. Step 6: Final answer
    x = 1,718,766.82

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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.