Home / 1,389,628.17-2,084,610.39-490,886.01

Finding the Fourth Proportional to 1,389,628.17, 2,084,610.39 and 490,886.01

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Solution

The fourth proportional to 1,389,628.17, 2,084,610.39 and 490,886.01 is: 736,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,628.17 : 2,084,610.39 = 490,886.01 : x
  2. Step 2: Convert to fraction form
    1,389,628.17/2,084,610.39 = 490,886.01/x
  3. Step 3: Cross multiply
    1,389,628.17x = 2,084,610.39 × 490,886.01
  4. Step 4: Simplify right side
    1,389,628.17x = 1,023,306,076,751.64
  5. Step 5: Solve for x
    x = 1,023,306,076,751.64/1,389,628.17
  6. Step 6: Final answer
    x = 736,388.41

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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.