Home / 1,931,140.90-2,897,748.15-809,323.30

Finding the Fourth Proportional to 1,931,140.90, 2,897,748.15 and 809,323.30

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Solution

The fourth proportional to 1,931,140.90, 2,897,748.15 and 809,323.30 is: 1,214,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,140.90 : 2,897,748.15 = 809,323.30 : x
  2. Step 2: Convert to fraction form
    1,931,140.90/2,897,748.15 = 809,323.30/x
  3. Step 3: Cross multiply
    1,931,140.90x = 2,897,748.15 × 809,323.30
  4. Step 4: Simplify right side
    1,931,140.90x = 2,345,215,095,326.90
  5. Step 5: Solve for x
    x = 2,345,215,095,326.90/1,931,140.90
  6. Step 6: Final answer
    x = 1,214,419.46

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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.