Home / 459,717.89-634,431.33-383,108.72

Finding the Fourth Proportional to 459,717.89, 634,431.33 and 383,108.72

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Solution

The fourth proportional to 459,717.89, 634,431.33 and 383,108.72 is: 528,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,717.89 : 634,431.33 = 383,108.72 : x
  2. Step 2: Convert to fraction form
    459,717.89/634,431.33 = 383,108.72/x
  3. Step 3: Cross multiply
    459,717.89x = 634,431.33 × 383,108.72
  4. Step 4: Simplify right side
    459,717.89x = 243,056,171,592.04
  5. Step 5: Solve for x
    x = 243,056,171,592.04/459,717.89
  6. Step 6: Final answer
    x = 528,707.23

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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.