Home / 1,890,428.40-2,835,901.80-628,124.40

Finding the Fourth Proportional to 1,890,428.40, 2,835,901.80 and 628,124.40

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Solution

The fourth proportional to 1,890,428.40, 2,835,901.80 and 628,124.40 is: 942,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,428.40 : 2,835,901.80 = 628,124.40 : x
  2. Step 2: Convert to fraction form
    1,890,428.40/2,835,901.80 = 628,124.40/x
  3. Step 3: Cross multiply
    1,890,428.40x = 2,835,901.80 × 628,124.40
  4. Step 4: Simplify right side
    1,890,428.40x = 1,781,299,116,583.92
  5. Step 5: Solve for x
    x = 1,781,299,116,583.92/1,890,428.40
  6. Step 6: Final answer
    x = 942,272.72

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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.