Home / 983,401.20-1,475,101.80-678,970.80

Finding the Fourth Proportional to 983,401.20, 1,475,101.80 and 678,970.80

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Solution

The fourth proportional to 983,401.20, 1,475,101.80 and 678,970.80 is: 1,018,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,401.20 : 1,475,101.80 = 678,970.80 : x
  2. Step 2: Convert to fraction form
    983,401.20/1,475,101.80 = 678,970.80/x
  3. Step 3: Cross multiply
    983,401.20x = 1,475,101.80 × 678,970.80
  4. Step 4: Simplify right side
    983,401.20x = 1,001,551,049,227.44
  5. Step 5: Solve for x
    x = 1,001,551,049,227.44/983,401.20
  6. Step 6: Final answer
    x = 1,018,456.20

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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.