Home / 983,619.20-1,475,428.80-969,622.40

Finding the Fourth Proportional to 983,619.20, 1,475,428.80 and 969,622.40

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Solution

The fourth proportional to 983,619.20, 1,475,428.80 and 969,622.40 is: 1,454,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,619.20 : 1,475,428.80 = 969,622.40 : x
  2. Step 2: Convert to fraction form
    983,619.20/1,475,428.80 = 969,622.40/x
  3. Step 3: Cross multiply
    983,619.20x = 1,475,428.80 × 969,622.40
  4. Step 4: Simplify right side
    983,619.20x = 1,430,608,814,085.12
  5. Step 5: Solve for x
    x = 1,430,608,814,085.12/983,619.20
  6. Step 6: Final answer
    x = 1,454,433.60

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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.