Home / 1,389,629.17-2,084,611.89-490,887.01

Finding the Fourth Proportional to 1,389,629.17, 2,084,611.89 and 490,887.01

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Solution

The fourth proportional to 1,389,629.17, 2,084,611.89 and 490,887.01 is: 736,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,629.17 : 2,084,611.89 = 490,887.01 : x
  2. Step 2: Convert to fraction form
    1,389,629.17/2,084,611.89 = 490,887.01/x
  3. Step 3: Cross multiply
    1,389,629.17x = 2,084,611.89 × 490,887.01
  4. Step 4: Simplify right side
    1,389,629.17x = 1,023,308,897,692.55
  5. Step 5: Solve for x
    x = 1,023,308,897,692.55/1,389,629.17
  6. Step 6: Final answer
    x = 736,389.91

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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.