Home / 916,641.56-1,264,946.32-508,719.72

Finding the Fourth Proportional to 916,641.56, 1,264,946.32 and 508,719.72

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Solution

The fourth proportional to 916,641.56, 1,264,946.32 and 508,719.72 is: 702,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,641.56 : 1,264,946.32 = 508,719.72 : x
  2. Step 2: Convert to fraction form
    916,641.56/1,264,946.32 = 508,719.72/x
  3. Step 3: Cross multiply
    916,641.56x = 1,264,946.32 × 508,719.72
  4. Step 4: Simplify right side
    916,641.56x = 643,503,137,725.43
  5. Step 5: Solve for x
    x = 643,503,137,725.43/916,641.56
  6. Step 6: Final answer
    x = 702,022.65

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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.