Home / 1,340,989.40-2,011,056.42-442,263.62

Finding the Fourth Proportional to 1,340,989.40, 2,011,056.42 and 442,263.62

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Solution

The fourth proportional to 1,340,989.40, 2,011,056.42 and 442,263.62 is: 663,254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,989.40 : 2,011,056.42 = 442,263.62 : x
  2. Step 2: Convert to fraction form
    1,340,989.40/2,011,056.42 = 442,263.62/x
  3. Step 3: Cross multiply
    1,340,989.40x = 2,011,056.42 × 442,263.62
  4. Step 4: Simplify right side
    1,340,989.40x = 889,417,092,333.44
  5. Step 5: Solve for x
    x = 889,417,092,333.44/1,340,989.40
  6. Step 6: Final answer
    x = 663,254.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.