Home / 916,629.82-1,264,930.12-508,707.95

Finding the Fourth Proportional to 916,629.82, 1,264,930.12 and 508,707.95

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Solution

The fourth proportional to 916,629.82, 1,264,930.12 and 508,707.95 is: 702,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,629.82 : 1,264,930.12 = 508,707.95 : x
  2. Step 2: Convert to fraction form
    916,629.82/1,264,930.12 = 508,707.95/x
  3. Step 3: Cross multiply
    916,629.82x = 1,264,930.12 × 508,707.95
  4. Step 4: Simplify right side
    916,629.82x = 643,480,002,549.69
  5. Step 5: Solve for x
    x = 643,480,002,549.69/916,629.82
  6. Step 6: Final answer
    x = 702,006.40

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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.