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Finding the Fourth Proportional to 529,484.64, 730,693.64 and 287,767.84

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Solution

The fourth proportional to 529,484.64, 730,693.64 and 287,767.84 is: 397,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,484.64 : 730,693.64 = 287,767.84 : x
  2. Step 2: Convert to fraction form
    529,484.64/730,693.64 = 287,767.84/x
  3. Step 3: Cross multiply
    529,484.64x = 730,693.64 × 287,767.84
  4. Step 4: Simplify right side
    529,484.64x = 210,270,126,831.07
  5. Step 5: Solve for x
    x = 210,270,126,831.07/529,484.64
  6. Step 6: Final answer
    x = 397,122.24

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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.