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Finding the Fourth Proportional to 628,234.40, 942,351.60 and 503,818.40

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Solution

The fourth proportional to 628,234.40, 942,351.60 and 503,818.40 is: 755,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,234.40 : 942,351.60 = 503,818.40 : x
  2. Step 2: Convert to fraction form
    628,234.40/942,351.60 = 503,818.40/x
  3. Step 3: Cross multiply
    628,234.40x = 942,351.60 × 503,818.40
  4. Step 4: Simplify right side
    628,234.40x = 474,774,075,349.44
  5. Step 5: Solve for x
    x = 474,774,075,349.44/628,234.40
  6. Step 6: Final answer
    x = 755,727.60

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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.