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Finding the Fourth Proportional to 461,682.39, 637,132.42 and 289,607.60

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Solution

The fourth proportional to 461,682.39, 637,132.42 and 289,607.60 is: 399,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,682.39 : 637,132.42 = 289,607.60 : x
  2. Step 2: Convert to fraction form
    461,682.39/637,132.42 = 289,607.60/x
  3. Step 3: Cross multiply
    461,682.39x = 637,132.42 × 289,607.60
  4. Step 4: Simplify right side
    461,682.39x = 184,518,391,038.39
  5. Step 5: Solve for x
    x = 184,518,391,038.39/461,682.39
  6. Step 6: Final answer
    x = 399,665.21

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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.