Home / 1,101,260.40-1,651,501.80-391,311.60

Finding the Fourth Proportional to 1,101,260.40, 1,651,501.80 and 391,311.60

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Solution

The fourth proportional to 1,101,260.40, 1,651,501.80 and 391,311.60 is: 586,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,260.40 : 1,651,501.80 = 391,311.60 : x
  2. Step 2: Convert to fraction form
    1,101,260.40/1,651,501.80 = 391,311.60/x
  3. Step 3: Cross multiply
    1,101,260.40x = 1,651,501.80 × 391,311.60
  4. Step 4: Simplify right side
    1,101,260.40x = 646,251,811,760.88
  5. Step 5: Solve for x
    x = 646,251,811,760.88/1,101,260.40
  6. Step 6: Final answer
    x = 586,829.25

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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.