Home / 780,046.70-1,170,070.05-644,744.30

Finding the Fourth Proportional to 780,046.70, 1,170,070.05 and 644,744.30

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Solution

The fourth proportional to 780,046.70, 1,170,070.05 and 644,744.30 is: 967,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,046.70 : 1,170,070.05 = 644,744.30 : x
  2. Step 2: Convert to fraction form
    780,046.70/1,170,070.05 = 644,744.30/x
  3. Step 3: Cross multiply
    780,046.70x = 1,170,070.05 × 644,744.30
  4. Step 4: Simplify right side
    780,046.70x = 754,395,995,338.22
  5. Step 5: Solve for x
    x = 754,395,995,338.22/780,046.70
  6. Step 6: Final answer
    x = 967,116.45

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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.