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Finding the Fourth Proportional to 507,772.80, 761,659.20 and 297,302.40

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Solution

The fourth proportional to 507,772.80, 761,659.20 and 297,302.40 is: 445,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,772.80 : 761,659.20 = 297,302.40 : x
  2. Step 2: Convert to fraction form
    507,772.80/761,659.20 = 297,302.40/x
  3. Step 3: Cross multiply
    507,772.80x = 761,659.20 × 297,302.40
  4. Step 4: Simplify right side
    507,772.80x = 226,443,108,142.08
  5. Step 5: Solve for x
    x = 226,443,108,142.08/507,772.80
  6. Step 6: Final answer
    x = 445,953.60

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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.