Home / 515,057.40-772,748.10-248,826.60

Finding the Fourth Proportional to 515,057.40, 772,748.10 and 248,826.60

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Solution

The fourth proportional to 515,057.40, 772,748.10 and 248,826.60 is: 373,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,057.40 : 772,748.10 = 248,826.60 : x
  2. Step 2: Convert to fraction form
    515,057.40/772,748.10 = 248,826.60/x
  3. Step 3: Cross multiply
    515,057.40x = 772,748.10 × 248,826.60
  4. Step 4: Simplify right side
    515,057.40x = 192,280,282,379.46
  5. Step 5: Solve for x
    x = 192,280,282,379.46/515,057.40
  6. Step 6: Final answer
    x = 373,318.16

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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.