Home / 410,014.80-614,920.14-143,784

Finding the Fourth Proportional to 410,014.80, 614,920.14 and 143,784

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Solution

The fourth proportional to 410,014.80, 614,920.14 and 143,784 is: 215,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,014.80 : 614,920.14 = 143,784 : x
  2. Step 2: Convert to fraction form
    410,014.80/614,920.14 = 143,784/x
  3. Step 3: Cross multiply
    410,014.80x = 614,920.14 × 143,784
  4. Step 4: Simplify right side
    410,014.80x = 88,415,677,409.76
  5. Step 5: Solve for x
    x = 88,415,677,409.76/410,014.80
  6. Step 6: Final answer
    x = 215,640.21

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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.