Home / 961,719.72-1,442,710.82-400,623

Finding the Fourth Proportional to 961,719.72, 1,442,710.82 and 400,623

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Solution

The fourth proportional to 961,719.72, 1,442,710.82 and 400,623 is: 600,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,719.72 : 1,442,710.82 = 400,623 : x
  2. Step 2: Convert to fraction form
    961,719.72/1,442,710.82 = 400,623/x
  3. Step 3: Cross multiply
    961,719.72x = 1,442,710.82 × 400,623
  4. Step 4: Simplify right side
    961,719.72x = 577,983,136,840.86
  5. Step 5: Solve for x
    x = 577,983,136,840.86/961,719.72
  6. Step 6: Final answer
    x = 600,989.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.