Home / 1,297,742.40-1,946,799.90-399,259.62

Finding the Fourth Proportional to 1,297,742.40, 1,946,799.90 and 399,259.62

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Solution

The fourth proportional to 1,297,742.40, 1,946,799.90 and 399,259.62 is: 598,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,742.40 : 1,946,799.90 = 399,259.62 : x
  2. Step 2: Convert to fraction form
    1,297,742.40/1,946,799.90 = 399,259.62/x
  3. Step 3: Cross multiply
    1,297,742.40x = 1,946,799.90 × 399,259.62
  4. Step 4: Simplify right side
    1,297,742.40x = 777,278,588,290.04
  5. Step 5: Solve for x
    x = 777,278,588,290.04/1,297,742.40
  6. Step 6: Final answer
    x = 598,946.75

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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.