Home / 1,220,853.78-1,831,280.70-472,899.78

Finding the Fourth Proportional to 1,220,853.78, 1,831,280.70 and 472,899.78

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Solution

The fourth proportional to 1,220,853.78, 1,831,280.70 and 472,899.78 is: 709,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,853.78 : 1,831,280.70 = 472,899.78 : x
  2. Step 2: Convert to fraction form
    1,220,853.78/1,831,280.70 = 472,899.78/x
  3. Step 3: Cross multiply
    1,220,853.78x = 1,831,280.70 × 472,899.78
  4. Step 4: Simplify right side
    1,220,853.78x = 866,012,240,148.25
  5. Step 5: Solve for x
    x = 866,012,240,148.25/1,220,853.78
  6. Step 6: Final answer
    x = 709,349.68

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Double scale
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Similar ratio
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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.