Home / 916,964.80-1,374,280.80-442,628.80

Finding the Fourth Proportional to 916,964.80, 1,374,280.80 and 442,628.80

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Solution

The fourth proportional to 916,964.80, 1,374,280.80 and 442,628.80 is: 663,380.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,964.80 : 1,374,280.80 = 442,628.80 : x
  2. Step 2: Convert to fraction form
    916,964.80/1,374,280.80 = 442,628.80/x
  3. Step 3: Cross multiply
    916,964.80x = 1,374,280.80 × 442,628.80
  4. Step 4: Simplify right side
    916,964.80x = 608,296,261,367.04
  5. Step 5: Solve for x
    x = 608,296,261,367.04/916,964.80
  6. Step 6: Final answer
    x = 663,380.17

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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.