Home / 1,686,748.71-2,328,012.90-998,802.50

Finding the Fourth Proportional to 1,686,748.71, 2,328,012.90 and 998,802.50

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Solution

The fourth proportional to 1,686,748.71, 2,328,012.90 and 998,802.50 is: 1,378,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,748.71 : 2,328,012.90 = 998,802.50 : x
  2. Step 2: Convert to fraction form
    1,686,748.71/2,328,012.90 = 998,802.50/x
  3. Step 3: Cross multiply
    1,686,748.71x = 2,328,012.90 × 998,802.50
  4. Step 4: Simplify right side
    1,686,748.71x = 2,325,225,092,912.19
  5. Step 5: Solve for x
    x = 2,325,225,092,912.19/1,686,748.71
  6. Step 6: Final answer
    x = 1,378,524.90

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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.