Home / 778,977-1,074,988.26-553,016.16

Finding the Fourth Proportional to 778,977, 1,074,988.26 and 553,016.16

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Solution

The fourth proportional to 778,977, 1,074,988.26 and 553,016.16 is: 763,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,977 : 1,074,988.26 = 553,016.16 : x
  2. Step 2: Convert to fraction form
    778,977/1,074,988.26 = 553,016.16/x
  3. Step 3: Cross multiply
    778,977x = 1,074,988.26 × 553,016.16
  4. Step 4: Simplify right side
    778,977x = 594,485,879,590.28
  5. Step 5: Solve for x
    x = 594,485,879,590.28/778,977
  6. Step 6: Final answer
    x = 763,162.30

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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.