Home / 776,117.80-1,161,843.90-460,412.20

Finding the Fourth Proportional to 776,117.80, 1,161,843.90 and 460,412.20

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Solution

The fourth proportional to 776,117.80, 1,161,843.90 and 460,412.20 is: 689,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,117.80 : 1,161,843.90 = 460,412.20 : x
  2. Step 2: Convert to fraction form
    776,117.80/1,161,843.90 = 460,412.20/x
  3. Step 3: Cross multiply
    776,117.80x = 1,161,843.90 × 460,412.20
  4. Step 4: Simplify right side
    776,117.80x = 534,927,106,055.58
  5. Step 5: Solve for x
    x = 534,927,106,055.58/776,117.80
  6. Step 6: Final answer
    x = 689,234.43

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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.