Home / 1,787,114.40-2,681,146.80-775,802.40

Finding the Fourth Proportional to 1,787,114.40, 2,681,146.80 and 775,802.40

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Solution

The fourth proportional to 1,787,114.40, 2,681,146.80 and 775,802.40 is: 1,163,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,114.40 : 2,681,146.80 = 775,802.40 : x
  2. Step 2: Convert to fraction form
    1,787,114.40/2,681,146.80 = 775,802.40/x
  3. Step 3: Cross multiply
    1,787,114.40x = 2,681,146.80 × 775,802.40
  4. Step 4: Simplify right side
    1,787,114.40x = 2,080,040,122,192.32
  5. Step 5: Solve for x
    x = 2,080,040,122,192.32/1,787,114.40
  6. Step 6: Final answer
    x = 1,163,909.89

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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.