Home / 916,634.21-1,264,896.11-508,736.38

Finding the Fourth Proportional to 916,634.21, 1,264,896.11 and 508,736.38

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Solution

The fourth proportional to 916,634.21, 1,264,896.11 and 508,736.38 is: 702,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,634.21 : 1,264,896.11 = 508,736.38 : x
  2. Step 2: Convert to fraction form
    916,634.21/1,264,896.11 = 508,736.38/x
  3. Step 3: Cross multiply
    916,634.21x = 1,264,896.11 × 508,736.38
  4. Step 4: Simplify right side
    916,634.21x = 643,498,668,077.48
  5. Step 5: Solve for x
    x = 643,498,668,077.48/916,634.21
  6. Step 6: Final answer
    x = 702,023.40

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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.