Home / 913,122.30-1,369,683.45-414,486.30

Finding the Fourth Proportional to 913,122.30, 1,369,683.45 and 414,486.30

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Solution

The fourth proportional to 913,122.30, 1,369,683.45 and 414,486.30 is: 621,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,122.30 : 1,369,683.45 = 414,486.30 : x
  2. Step 2: Convert to fraction form
    913,122.30/1,369,683.45 = 414,486.30/x
  3. Step 3: Cross multiply
    913,122.30x = 1,369,683.45 × 414,486.30
  4. Step 4: Simplify right side
    913,122.30x = 567,715,025,361.74
  5. Step 5: Solve for x
    x = 567,715,025,361.74/913,122.30
  6. Step 6: Final answer
    x = 621,729.45

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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.