Home / 1,207,903.20-1,807,189.20-787,999.20

Finding the Fourth Proportional to 1,207,903.20, 1,807,189.20 and 787,999.20

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Solution

The fourth proportional to 1,207,903.20, 1,807,189.20 and 787,999.20 is: 1,178,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,903.20 : 1,807,189.20 = 787,999.20 : x
  2. Step 2: Convert to fraction form
    1,207,903.20/1,807,189.20 = 787,999.20/x
  3. Step 3: Cross multiply
    1,207,903.20x = 1,807,189.20 × 787,999.20
  4. Step 4: Simplify right side
    1,207,903.20x = 1,424,063,643,848.64
  5. Step 5: Solve for x
    x = 1,424,063,643,848.64/1,207,903.20
  6. Step 6: Final answer
    x = 1,178,955.10

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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.