Home / 814,136.09-1,122,772.74-508,240.67

Finding the Fourth Proportional to 814,136.09, 1,122,772.74 and 508,240.67

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Solution

The fourth proportional to 814,136.09, 1,122,772.74 and 508,240.67 is: 700,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,136.09 : 1,122,772.74 = 508,240.67 : x
  2. Step 2: Convert to fraction form
    814,136.09/1,122,772.74 = 508,240.67/x
  3. Step 3: Cross multiply
    814,136.09x = 1,122,772.74 × 508,240.67
  4. Step 4: Simplify right side
    814,136.09x = 570,638,769,635.34
  5. Step 5: Solve for x
    x = 570,638,769,635.34/814,136.09
  6. Step 6: Final answer
    x = 700,913.25

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.