Home / 1,216,478.10-1,678,710.08-672,600.08

Finding the Fourth Proportional to 1,216,478.10, 1,678,710.08 and 672,600.08

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Solution

The fourth proportional to 1,216,478.10, 1,678,710.08 and 672,600.08 is: 928,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,478.10 : 1,678,710.08 = 672,600.08 : x
  2. Step 2: Convert to fraction form
    1,216,478.10/1,678,710.08 = 672,600.08/x
  3. Step 3: Cross multiply
    1,216,478.10x = 1,678,710.08 × 672,600.08
  4. Step 4: Simplify right side
    1,216,478.10x = 1,129,100,534,104.81
  5. Step 5: Solve for x
    x = 1,129,100,534,104.81/1,216,478.10
  6. Step 6: Final answer
    x = 928,171.69

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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.