Home / 1,765,835.78-2,649,148.54-643,904.78

Finding the Fourth Proportional to 1,765,835.78, 2,649,148.54 and 643,904.78

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Solution

The fourth proportional to 1,765,835.78, 2,649,148.54 and 643,904.78 is: 966,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765,835.78 : 2,649,148.54 = 643,904.78 : x
  2. Step 2: Convert to fraction form
    1,765,835.78/2,649,148.54 = 643,904.78/x
  3. Step 3: Cross multiply
    1,765,835.78x = 2,649,148.54 × 643,904.78
  4. Step 4: Simplify right side
    1,765,835.78x = 1,705,799,407,836.02
  5. Step 5: Solve for x
    x = 1,705,799,407,836.02/1,765,835.78
  6. Step 6: Final answer
    x = 966,001.16

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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.