Home / 915,798.48-1,263,879.55-508,031.72

Finding the Fourth Proportional to 915,798.48, 1,263,879.55 and 508,031.72

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Solution

The fourth proportional to 915,798.48, 1,263,879.55 and 508,031.72 is: 701,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,798.48 : 1,263,879.55 = 508,031.72 : x
  2. Step 2: Convert to fraction form
    915,798.48/1,263,879.55 = 508,031.72/x
  3. Step 3: Cross multiply
    915,798.48x = 1,263,879.55 × 508,031.72
  4. Step 4: Simplify right side
    915,798.48x = 642,090,901,659.33
  5. Step 5: Solve for x
    x = 642,090,901,659.33/915,798.48
  6. Step 6: Final answer
    x = 701,126.85

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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.