Home / 1,097,437.20-1,646,155.80-978,464.40

Finding the Fourth Proportional to 1,097,437.20, 1,646,155.80 and 978,464.40

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Solution

The fourth proportional to 1,097,437.20, 1,646,155.80 and 978,464.40 is: 1,467,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,437.20 : 1,646,155.80 = 978,464.40 : x
  2. Step 2: Convert to fraction form
    1,097,437.20/1,646,155.80 = 978,464.40/x
  3. Step 3: Cross multiply
    1,097,437.20x = 1,646,155.80 × 978,464.40
  4. Step 4: Simplify right side
    1,097,437.20x = 1,610,704,847,153.52
  5. Step 5: Solve for x
    x = 1,610,704,847,153.52/1,097,437.20
  6. Step 6: Final answer
    x = 1,467,696.60

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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.