Home / 778,673.15-1,168,009.73-210,053.15

Finding the Fourth Proportional to 778,673.15, 1,168,009.73 and 210,053.15

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Solution

The fourth proportional to 778,673.15, 1,168,009.73 and 210,053.15 is: 315,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,673.15 : 1,168,009.73 = 210,053.15 : x
  2. Step 2: Convert to fraction form
    778,673.15/1,168,009.73 = 210,053.15/x
  3. Step 3: Cross multiply
    778,673.15x = 1,168,009.73 × 210,053.15
  4. Step 4: Simplify right side
    778,673.15x = 245,344,121,966.88
  5. Step 5: Solve for x
    x = 245,344,121,966.88/778,673.15
  6. Step 6: Final answer
    x = 315,079.73

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Double scale
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Similar ratio
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1.5x scale

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.