Home / 1,102,136.63-1,521,665.80-672,665.72

Finding the Fourth Proportional to 1,102,136.63, 1,521,665.80 and 672,665.72

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Solution

The fourth proportional to 1,102,136.63, 1,521,665.80 and 672,665.72 is: 928,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,136.63 : 1,521,665.80 = 672,665.72 : x
  2. Step 2: Convert to fraction form
    1,102,136.63/1,521,665.80 = 672,665.72/x
  3. Step 3: Cross multiply
    1,102,136.63x = 1,521,665.80 × 672,665.72
  4. Step 4: Simplify right side
    1,102,136.63x = 1,023,572,411,666.38
  5. Step 5: Solve for x
    x = 1,023,572,411,666.38/1,102,136.63
  6. Step 6: Final answer
    x = 928,716.45

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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.