Home / 1,189,970.16-1,784,576.52-391,066.80

Finding the Fourth Proportional to 1,189,970.16, 1,784,576.52 and 391,066.80

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Solution

The fourth proportional to 1,189,970.16, 1,784,576.52 and 391,066.80 is: 586,475.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,970.16 : 1,784,576.52 = 391,066.80 : x
  2. Step 2: Convert to fraction form
    1,189,970.16/1,784,576.52 = 391,066.80/x
  3. Step 3: Cross multiply
    1,189,970.16x = 1,784,576.52 × 391,066.80
  4. Step 4: Simplify right side
    1,189,970.16x = 697,888,629,031.54
  5. Step 5: Solve for x
    x = 697,888,629,031.54/1,189,970.16
  6. Step 6: Final answer
    x = 586,475.74

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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.