Home / 1,991,503.40-2,748,521.58-1,216,974.92

Finding the Fourth Proportional to 1,991,503.40, 2,748,521.58 and 1,216,974.92

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Solution

The fourth proportional to 1,991,503.40, 2,748,521.58 and 1,216,974.92 is: 1,679,576.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,503.40 : 2,748,521.58 = 1,216,974.92 : x
  2. Step 2: Convert to fraction form
    1,991,503.40/2,748,521.58 = 1,216,974.92/x
  3. Step 3: Cross multiply
    1,991,503.40x = 2,748,521.58 × 1,216,974.92
  4. Step 4: Simplify right side
    1,991,503.40x = 3,344,881,829,938.77
  5. Step 5: Solve for x
    x = 3,344,881,829,938.77/1,991,503.40
  6. Step 6: Final answer
    x = 1,679,576.26

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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.