Home / 898,970.60-1,240,583.62-491,078.12

Finding the Fourth Proportional to 898,970.60, 1,240,583.62 and 491,078.12

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Solution

The fourth proportional to 898,970.60, 1,240,583.62 and 491,078.12 is: 677,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,970.60 : 1,240,583.62 = 491,078.12 : x
  2. Step 2: Convert to fraction form
    898,970.60/1,240,583.62 = 491,078.12/x
  3. Step 3: Cross multiply
    898,970.60x = 1,240,583.62 × 491,078.12
  4. Step 4: Simplify right side
    898,970.60x = 609,223,471,812.39
  5. Step 5: Solve for x
    x = 609,223,471,812.39/898,970.60
  6. Step 6: Final answer
    x = 677,690.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.