Home / 1,211,566.04-1,671,972.56-667,721.44

Finding the Fourth Proportional to 1,211,566.04, 1,671,972.56 and 667,721.44

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Solution

The fourth proportional to 1,211,566.04, 1,671,972.56 and 667,721.44 is: 921,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,566.04 : 1,671,972.56 = 667,721.44 : x
  2. Step 2: Convert to fraction form
    1,211,566.04/1,671,972.56 = 667,721.44/x
  3. Step 3: Cross multiply
    1,211,566.04x = 1,671,972.56 × 667,721.44
  4. Step 4: Simplify right side
    1,211,566.04x = 1,116,411,925,403.69
  5. Step 5: Solve for x
    x = 1,116,411,925,403.69/1,211,566.04
  6. Step 6: Final answer
    x = 921,461.88

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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.