Home / 1,215,884.08-1,678,006.90-672,008.16

Finding the Fourth Proportional to 1,215,884.08, 1,678,006.90 and 672,008.16

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Solution

The fourth proportional to 1,215,884.08, 1,678,006.90 and 672,008.16 is: 927,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,884.08 : 1,678,006.90 = 672,008.16 : x
  2. Step 2: Convert to fraction form
    1,215,884.08/1,678,006.90 = 672,008.16/x
  3. Step 3: Cross multiply
    1,215,884.08x = 1,678,006.90 × 672,008.16
  4. Step 4: Simplify right side
    1,215,884.08x = 1,127,634,329,336.30
  5. Step 5: Solve for x
    x = 1,127,634,329,336.30/1,215,884.08
  6. Step 6: Final answer
    x = 927,419.27

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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.