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Finding the Fourth Proportional to 528,383.79, 790,773.71 and 336,161.07

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Solution

The fourth proportional to 528,383.79, 790,773.71 and 336,161.07 is: 503,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,383.79 : 790,773.71 = 336,161.07 : x
  2. Step 2: Convert to fraction form
    528,383.79/790,773.71 = 336,161.07/x
  3. Step 3: Cross multiply
    528,383.79x = 790,773.71 × 336,161.07
  4. Step 4: Simplify right side
    528,383.79x = 265,827,334,800.66
  5. Step 5: Solve for x
    x = 265,827,334,800.66/528,383.79
  6. Step 6: Final answer
    x = 503,095.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.