Home / 915,388.66-1,263,311.19-507,618.40

Finding the Fourth Proportional to 915,388.66, 1,263,311.19 and 507,618.40

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Solution

The fourth proportional to 915,388.66, 1,263,311.19 and 507,618.40 is: 700,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,388.66 : 1,263,311.19 = 507,618.40 : x
  2. Step 2: Convert to fraction form
    915,388.66/1,263,311.19 = 507,618.40/x
  3. Step 3: Cross multiply
    915,388.66x = 1,263,311.19 × 507,618.40
  4. Step 4: Simplify right side
    915,388.66x = 641,280,004,969.90
  5. Step 5: Solve for x
    x = 641,280,004,969.90/915,388.66
  6. Step 6: Final answer
    x = 700,554.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.