Home / 1,930,720.40-2,897,117.40-808,902.80

Finding the Fourth Proportional to 1,930,720.40, 2,897,117.40 and 808,902.80

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Solution

The fourth proportional to 1,930,720.40, 2,897,117.40 and 808,902.80 is: 1,213,788.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930,720.40 : 2,897,117.40 = 808,902.80 : x
  2. Step 2: Convert to fraction form
    1,930,720.40/2,897,117.40 = 808,902.80/x
  3. Step 3: Cross multiply
    1,930,720.40x = 2,897,117.40 × 808,902.80
  4. Step 4: Simplify right side
    1,930,720.40x = 2,343,486,376,788.72
  5. Step 5: Solve for x
    x = 2,343,486,376,788.72/1,930,720.40
  6. Step 6: Final answer
    x = 1,213,788.58

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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.