Home / 916,247.89-1,264,379.25-508,345.39

Finding the Fourth Proportional to 916,247.89, 1,264,379.25 and 508,345.39

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Solution

The fourth proportional to 916,247.89, 1,264,379.25 and 508,345.39 is: 701,492.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,247.89 : 1,264,379.25 = 508,345.39 : x
  2. Step 2: Convert to fraction form
    916,247.89/1,264,379.25 = 508,345.39/x
  3. Step 3: Cross multiply
    916,247.89x = 1,264,379.25 × 508,345.39
  4. Step 4: Simplify right side
    916,247.89x = 642,741,362,949.16
  5. Step 5: Solve for x
    x = 642,741,362,949.16/916,247.89
  6. Step 6: Final answer
    x = 701,492.87

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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.