Home / 916,638.38-1,264,941.93-508,716.52

Finding the Fourth Proportional to 916,638.38, 1,264,941.93 and 508,716.52

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Solution

The fourth proportional to 916,638.38, 1,264,941.93 and 508,716.52 is: 702,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,638.38 : 1,264,941.93 = 508,716.52 : x
  2. Step 2: Convert to fraction form
    916,638.38/1,264,941.93 = 508,716.52/x
  3. Step 3: Cross multiply
    916,638.38x = 1,264,941.93 × 508,716.52
  4. Step 4: Simplify right side
    916,638.38x = 643,496,856,631.68
  5. Step 5: Solve for x
    x = 643,496,856,631.68/916,638.38
  6. Step 6: Final answer
    x = 702,018.23

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1.5x scale

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.