Home / 916,636.88-1,264,939.87-508,715.01

Finding the Fourth Proportional to 916,636.88, 1,264,939.87 and 508,715.01

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Solution

The fourth proportional to 916,636.88, 1,264,939.87 and 508,715.01 is: 702,016.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,636.88 : 1,264,939.87 = 508,715.01 : x
  2. Step 2: Convert to fraction form
    916,636.88/1,264,939.87 = 508,715.01/x
  3. Step 3: Cross multiply
    916,636.88x = 1,264,939.87 × 508,715.01
  4. Step 4: Simplify right side
    916,636.88x = 643,493,898,616.45
  5. Step 5: Solve for x
    x = 643,493,898,616.45/916,636.88
  6. Step 6: Final answer
    x = 702,016.16

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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.