Home / 1,189,890-1,642,048.20-653,346

Finding the Fourth Proportional to 1,189,890, 1,642,048.20 and 653,346

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Solution

The fourth proportional to 1,189,890, 1,642,048.20 and 653,346 is: 901,617.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,890 : 1,642,048.20 = 653,346 : x
  2. Step 2: Convert to fraction form
    1,189,890/1,642,048.20 = 653,346/x
  3. Step 3: Cross multiply
    1,189,890x = 1,642,048.20 × 653,346
  4. Step 4: Simplify right side
    1,189,890x = 1,072,825,623,277.20
  5. Step 5: Solve for x
    x = 1,072,825,623,277.20/1,189,890
  6. Step 6: Final answer
    x = 901,617.48

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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.