Home / 1,216,465.92-1,678,654.80-672,570

Finding the Fourth Proportional to 1,216,465.92, 1,678,654.80 and 672,570

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Solution

The fourth proportional to 1,216,465.92, 1,678,654.80 and 672,570 is: 928,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,465.92 : 1,678,654.80 = 672,570 : x
  2. Step 2: Convert to fraction form
    1,216,465.92/1,678,654.80 = 672,570/x
  3. Step 3: Cross multiply
    1,216,465.92x = 1,678,654.80 × 672,570
  4. Step 4: Simplify right side
    1,216,465.92x = 1,129,012,858,836
  5. Step 5: Solve for x
    x = 1,129,012,858,836/1,216,465.92
  6. Step 6: Final answer
    x = 928,108.91

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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.