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Finding the Fourth Proportional to 628,472.08, 867,297 and 580,848.40

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Solution

The fourth proportional to 628,472.08, 867,297 and 580,848.40 is: 801,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,472.08 : 867,297 = 580,848.40 : x
  2. Step 2: Convert to fraction form
    628,472.08/867,297 = 580,848.40/x
  3. Step 3: Cross multiply
    628,472.08x = 867,297 × 580,848.40
  4. Step 4: Simplify right side
    628,472.08x = 503,768,074,774.80
  5. Step 5: Solve for x
    x = 503,768,074,774.80/628,472.08
  6. Step 6: Final answer
    x = 801,575.90

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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.