Home / 1,209,979.74-1,814,970.18-499,226.60

Finding the Fourth Proportional to 1,209,979.74, 1,814,970.18 and 499,226.60

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Solution

The fourth proportional to 1,209,979.74, 1,814,970.18 and 499,226.60 is: 748,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,979.74 : 1,814,970.18 = 499,226.60 : x
  2. Step 2: Convert to fraction form
    1,209,979.74/1,814,970.18 = 499,226.60/x
  3. Step 3: Cross multiply
    1,209,979.74x = 1,814,970.18 × 499,226.60
  4. Step 4: Simplify right side
    1,209,979.74x = 906,081,392,062.79
  5. Step 5: Solve for x
    x = 906,081,392,062.79/1,209,979.74
  6. Step 6: Final answer
    x = 748,840.14

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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.