Home / 916,631.82-1,264,932.88-508,709.95

Finding the Fourth Proportional to 916,631.82, 1,264,932.88 and 508,709.95

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Solution

The fourth proportional to 916,631.82, 1,264,932.88 and 508,709.95 is: 702,009.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,631.82 : 1,264,932.88 = 508,709.95 : x
  2. Step 2: Convert to fraction form
    916,631.82/1,264,932.88 = 508,709.95/x
  3. Step 3: Cross multiply
    916,631.82x = 1,264,932.88 × 508,709.95
  4. Step 4: Simplify right side
    916,631.82x = 643,483,942,138.16
  5. Step 5: Solve for x
    x = 643,483,942,138.16/916,631.82
  6. Step 6: Final answer
    x = 702,009.17

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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.