Home / 868,124.90-1,302,187.35-307,216.10

Finding the Fourth Proportional to 868,124.90, 1,302,187.35 and 307,216.10

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Solution

The fourth proportional to 868,124.90, 1,302,187.35 and 307,216.10 is: 460,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,124.90 : 1,302,187.35 = 307,216.10 : x
  2. Step 2: Convert to fraction form
    868,124.90/1,302,187.35 = 307,216.10/x
  3. Step 3: Cross multiply
    868,124.90x = 1,302,187.35 × 307,216.10
  4. Step 4: Simplify right side
    868,124.90x = 400,052,919,136.34
  5. Step 5: Solve for x
    x = 400,052,919,136.34/868,124.90
  6. Step 6: Final answer
    x = 460,824.15

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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.