Home / 1,216,502.91-1,678,655.64-672,564.22

Finding the Fourth Proportional to 1,216,502.91, 1,678,655.64 and 672,564.22

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Solution

The fourth proportional to 1,216,502.91, 1,678,655.64 and 672,564.22 is: 928,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,502.91 : 1,678,655.64 = 672,564.22 : x
  2. Step 2: Convert to fraction form
    1,216,502.91/1,678,655.64 = 672,564.22/x
  3. Step 3: Cross multiply
    1,216,502.91x = 1,678,655.64 × 672,564.22
  4. Step 4: Simplify right side
    1,216,502.91x = 1,129,003,721,165.20
  5. Step 5: Solve for x
    x = 1,129,003,721,165.20/1,216,502.91
  6. Step 6: Final answer
    x = 928,073.18

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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.