Home / 916,027.78-1,264,138.59-508,116.31

Finding the Fourth Proportional to 916,027.78, 1,264,138.59 and 508,116.31

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Solution

The fourth proportional to 916,027.78, 1,264,138.59 and 508,116.31 is: 701,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,027.78 : 1,264,138.59 = 508,116.31 : x
  2. Step 2: Convert to fraction form
    916,027.78/1,264,138.59 = 508,116.31/x
  3. Step 3: Cross multiply
    916,027.78x = 1,264,138.59 × 508,116.31
  4. Step 4: Simplify right side
    916,027.78x = 642,329,435,679.40
  5. Step 5: Solve for x
    x = 642,329,435,679.40/916,027.78
  6. Step 6: Final answer
    x = 701,211.74

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Double scale
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1.5x scale

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.