Home / 916,709.34-1,264,956.29-508,828.38

Finding the Fourth Proportional to 916,709.34, 1,264,956.29 and 508,828.38

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Solution

The fourth proportional to 916,709.34, 1,264,956.29 and 508,828.38 is: 702,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,709.34 : 1,264,956.29 = 508,828.38 : x
  2. Step 2: Convert to fraction form
    916,709.34/1,264,956.29 = 508,828.38/x
  3. Step 3: Cross multiply
    916,709.34x = 1,264,956.29 × 508,828.38
  4. Step 4: Simplify right side
    916,709.34x = 643,645,650,942.59
  5. Step 5: Solve for x
    x = 643,645,650,942.59/916,709.34
  6. Step 6: Final answer
    x = 702,126.21

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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.