Home / 1,341,438.40-2,011,574.40-442,532.80

Finding the Fourth Proportional to 1,341,438.40, 2,011,574.40 and 442,532.80

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Solution

The fourth proportional to 1,341,438.40, 2,011,574.40 and 442,532.80 is: 663,606.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,438.40 : 2,011,574.40 = 442,532.80 : x
  2. Step 2: Convert to fraction form
    1,341,438.40/2,011,574.40 = 442,532.80/x
  3. Step 3: Cross multiply
    1,341,438.40x = 2,011,574.40 × 442,532.80
  4. Step 4: Simplify right side
    1,341,438.40x = 890,187,651,640.32
  5. Step 5: Solve for x
    x = 890,187,651,640.32/1,341,438.40
  6. Step 6: Final answer
    x = 663,606.81

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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.