Home / 2,178,426.43-3,006,267.09-1,211,557.10

Finding the Fourth Proportional to 2,178,426.43, 3,006,267.09 and 1,211,557.10

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Solution

The fourth proportional to 2,178,426.43, 3,006,267.09 and 1,211,557.10 is: 1,671,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,426.43 : 3,006,267.09 = 1,211,557.10 : x
  2. Step 2: Convert to fraction form
    2,178,426.43/3,006,267.09 = 1,211,557.10/x
  3. Step 3: Cross multiply
    2,178,426.43x = 3,006,267.09 × 1,211,557.10
  4. Step 4: Simplify right side
    2,178,426.43x = 3,642,264,237,385.84
  5. Step 5: Solve for x
    x = 3,642,264,237,385.84/2,178,426.43
  6. Step 6: Final answer
    x = 1,671,970.28

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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.