Home / 876,683.70-1,315,025.55-315,645.30

Finding the Fourth Proportional to 876,683.70, 1,315,025.55 and 315,645.30

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Solution

The fourth proportional to 876,683.70, 1,315,025.55 and 315,645.30 is: 473,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,683.70 : 1,315,025.55 = 315,645.30 : x
  2. Step 2: Convert to fraction form
    876,683.70/1,315,025.55 = 315,645.30/x
  3. Step 3: Cross multiply
    876,683.70x = 1,315,025.55 × 315,645.30
  4. Step 4: Simplify right side
    876,683.70x = 415,081,634,237.42
  5. Step 5: Solve for x
    x = 415,081,634,237.42/876,683.70
  6. Step 6: Final answer
    x = 473,467.95

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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.