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Finding the Fourth Proportional to 415,070.49, 572,924.30 and 243,028.79

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Solution

The fourth proportional to 415,070.49, 572,924.30 and 243,028.79 is: 335,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,070.49 : 572,924.30 = 243,028.79 : x
  2. Step 2: Convert to fraction form
    415,070.49/572,924.30 = 243,028.79/x
  3. Step 3: Cross multiply
    415,070.49x = 572,924.30 × 243,028.79
  4. Step 4: Simplify right side
    415,070.49x = 139,237,099,390.60
  5. Step 5: Solve for x
    x = 139,237,099,390.60/415,070.49
  6. Step 6: Final answer
    x = 335,454.10

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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.