Home / 1,289,097.20-1,931,341.80-622,780.40

Finding the Fourth Proportional to 1,289,097.20, 1,931,341.80 and 622,780.40

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Solution

The fourth proportional to 1,289,097.20, 1,931,341.80 and 622,780.40 is: 933,057.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,097.20 : 1,931,341.80 = 622,780.40 : x
  2. Step 2: Convert to fraction form
    1,289,097.20/1,931,341.80 = 622,780.40/x
  3. Step 3: Cross multiply
    1,289,097.20x = 1,931,341.80 × 622,780.40
  4. Step 4: Simplify right side
    1,289,097.20x = 1,202,801,818,740.72
  5. Step 5: Solve for x
    x = 1,202,801,818,740.72/1,289,097.20
  6. Step 6: Final answer
    x = 933,057.51

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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.