Home / 923,860.80-1,384,754.40-391,291.20

Finding the Fourth Proportional to 923,860.80, 1,384,754.40 and 391,291.20

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Solution

The fourth proportional to 923,860.80, 1,384,754.40 and 391,291.20 is: 586,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,860.80 : 1,384,754.40 = 391,291.20 : x
  2. Step 2: Convert to fraction form
    923,860.80/1,384,754.40 = 391,291.20/x
  3. Step 3: Cross multiply
    923,860.80x = 1,384,754.40 × 391,291.20
  4. Step 4: Simplify right side
    923,860.80x = 541,842,210,881.28
  5. Step 5: Solve for x
    x = 541,842,210,881.28/923,860.80
  6. Step 6: Final answer
    x = 586,497.67

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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.