Home / 1,765,108.90-2,648,354.55-643,291.30

Finding the Fourth Proportional to 1,765,108.90, 2,648,354.55 and 643,291.30

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Solution

The fourth proportional to 1,765,108.90, 2,648,354.55 and 643,291.30 is: 965,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765,108.90 : 2,648,354.55 = 643,291.30 : x
  2. Step 2: Convert to fraction form
    1,765,108.90/2,648,354.55 = 643,291.30/x
  3. Step 3: Cross multiply
    1,765,108.90x = 2,648,354.55 × 643,291.30
  4. Step 4: Simplify right side
    1,765,108.90x = 1,703,663,441,330.42
  5. Step 5: Solve for x
    x = 1,703,663,441,330.42/1,765,108.90
  6. Step 6: Final answer
    x = 965,188.86

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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.