Home / 1,216,656.84-1,678,997.30-672,829.20

Finding the Fourth Proportional to 1,216,656.84, 1,678,997.30 and 672,829.20

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Solution

The fourth proportional to 1,216,656.84, 1,678,997.30 and 672,829.20 is: 928,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,656.84 : 1,678,997.30 = 672,829.20 : x
  2. Step 2: Convert to fraction form
    1,216,656.84/1,678,997.30 = 672,829.20/x
  3. Step 3: Cross multiply
    1,216,656.84x = 1,678,997.30 × 672,829.20
  4. Step 4: Simplify right side
    1,216,656.84x = 1,129,678,410,161.16
  5. Step 5: Solve for x
    x = 1,129,678,410,161.16/1,216,656.84
  6. Step 6: Final answer
    x = 928,510.30

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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.