Home / 916,015.86-1,264,253.20-508,248.90

Finding the Fourth Proportional to 916,015.86, 1,264,253.20 and 508,248.90

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Solution

The fourth proportional to 916,015.86, 1,264,253.20 and 508,248.90 is: 701,467.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,015.86 : 1,264,253.20 = 508,248.90 : x
  2. Step 2: Convert to fraction form
    916,015.86/1,264,253.20 = 508,248.90/x
  3. Step 3: Cross multiply
    916,015.86x = 1,264,253.20 × 508,248.90
  4. Step 4: Simplify right side
    916,015.86x = 642,555,296,950.86
  5. Step 5: Solve for x
    x = 642,555,296,950.86/916,015.86
  6. Step 6: Final answer
    x = 701,467.44

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Double scale
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Similar ratio
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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.