Home / 1,389,644.16-2,084,634.40-490,902

Finding the Fourth Proportional to 1,389,644.16, 2,084,634.40 and 490,902

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Solution

The fourth proportional to 1,389,644.16, 2,084,634.40 and 490,902 is: 736,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,644.16 : 2,084,634.40 = 490,902 : x
  2. Step 2: Convert to fraction form
    1,389,644.16/2,084,634.40 = 490,902/x
  3. Step 3: Cross multiply
    1,389,644.16x = 2,084,634.40 × 490,902
  4. Step 4: Simplify right side
    1,389,644.16x = 1,023,351,196,228.80
  5. Step 5: Solve for x
    x = 1,023,351,196,228.80/1,389,644.16
  6. Step 6: Final answer
    x = 736,412.40

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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.