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Finding the Fourth Proportional to 630,859.50, 946,289.30 and 503,905.35

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Solution

The fourth proportional to 630,859.50, 946,289.30 and 503,905.35 is: 755,858.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,859.50 : 946,289.30 = 503,905.35 : x
  2. Step 2: Convert to fraction form
    630,859.50/946,289.30 = 503,905.35/x
  3. Step 3: Cross multiply
    630,859.50x = 946,289.30 × 503,905.35
  4. Step 4: Simplify right side
    630,859.50x = 476,840,240,917.76
  5. Step 5: Solve for x
    x = 476,840,240,917.76/630,859.50
  6. Step 6: Final answer
    x = 755,858.06

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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.