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Finding the Fourth Proportional to 889,592.72, 1,227,725.85 and 507,676.91

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Solution

The fourth proportional to 889,592.72, 1,227,725.85 and 507,676.91 is: 700,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,592.72 : 1,227,725.85 = 507,676.91 : x
  2. Step 2: Convert to fraction form
    889,592.72/1,227,725.85 = 507,676.91/x
  3. Step 3: Cross multiply
    889,592.72x = 1,227,725.85 × 507,676.91
  4. Step 4: Simplify right side
    889,592.72x = 623,288,059,716.49
  5. Step 5: Solve for x
    x = 623,288,059,716.49/889,592.72
  6. Step 6: Final answer
    x = 700,644.29

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Double scale
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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.