Home / 983,428.80-1,475,143.20-684,830.40

Finding the Fourth Proportional to 983,428.80, 1,475,143.20 and 684,830.40

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Solution

The fourth proportional to 983,428.80, 1,475,143.20 and 684,830.40 is: 1,027,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,428.80 : 1,475,143.20 = 684,830.40 : x
  2. Step 2: Convert to fraction form
    983,428.80/1,475,143.20 = 684,830.40/x
  3. Step 3: Cross multiply
    983,428.80x = 1,475,143.20 × 684,830.40
  4. Step 4: Simplify right side
    983,428.80x = 1,010,222,907,713.28
  5. Step 5: Solve for x
    x = 1,010,222,907,713.28/983,428.80
  6. Step 6: Final answer
    x = 1,027,245.60

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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.