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Finding the Fourth Proportional to 438,071.72, 604,812.65 and 335,900.90

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Solution

The fourth proportional to 438,071.72, 604,812.65 and 335,900.90 is: 463,753.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,071.72 : 604,812.65 = 335,900.90 : x
  2. Step 2: Convert to fraction form
    438,071.72/604,812.65 = 335,900.90/x
  3. Step 3: Cross multiply
    438,071.72x = 604,812.65 × 335,900.90
  4. Step 4: Simplify right side
    438,071.72x = 203,157,113,298.91
  5. Step 5: Solve for x
    x = 203,157,113,298.91/438,071.72
  6. Step 6: Final answer
    x = 463,753.09

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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.