Home / 705,347.69-1,057,297.64-278,710.74

Finding the Fourth Proportional to 705,347.69, 1,057,297.64 and 278,710.74

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Solution

The fourth proportional to 705,347.69, 1,057,297.64 and 278,710.74 is: 417,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,347.69 : 1,057,297.64 = 278,710.74 : x
  2. Step 2: Convert to fraction form
    705,347.69/1,057,297.64 = 278,710.74/x
  3. Step 3: Cross multiply
    705,347.69x = 1,057,297.64 × 278,710.74
  4. Step 4: Simplify right side
    705,347.69x = 294,680,206,251.10
  5. Step 5: Solve for x
    x = 294,680,206,251.10/705,347.69
  6. Step 6: Final answer
    x = 417,780.07

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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.