Home / 1,642,966.40-2,267,212.65-917,669.72

Finding the Fourth Proportional to 1,642,966.40, 2,267,212.65 and 917,669.72

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Solution

The fourth proportional to 1,642,966.40, 2,267,212.65 and 917,669.72 is: 1,266,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,966.40 : 2,267,212.65 = 917,669.72 : x
  2. Step 2: Convert to fraction form
    1,642,966.40/2,267,212.65 = 917,669.72/x
  3. Step 3: Cross multiply
    1,642,966.40x = 2,267,212.65 × 917,669.72
  4. Step 4: Simplify right side
    1,642,966.40x = 2,080,552,386,369.89
  5. Step 5: Solve for x
    x = 2,080,552,386,369.89/1,642,966.40
  6. Step 6: Final answer
    x = 1,266,338.98

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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.