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Finding the Fourth Proportional to 889,586.90, 1,227,717.83 and 507,671.09

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Solution

The fourth proportional to 889,586.90, 1,227,717.83 and 507,671.09 is: 700,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,586.90 : 1,227,717.83 = 507,671.09 : x
  2. Step 2: Convert to fraction form
    889,586.90/1,227,717.83 = 507,671.09/x
  3. Step 3: Cross multiply
    889,586.90x = 1,227,717.83 × 507,671.09
  4. Step 4: Simplify right side
    889,586.90x = 623,276,844,099.12
  5. Step 5: Solve for x
    x = 623,276,844,099.12/889,586.90
  6. Step 6: Final answer
    x = 700,636.27

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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.