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Finding the Fourth Proportional to 459,876.48, 634,623.04 and 258,672

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Solution

The fourth proportional to 459,876.48, 634,623.04 and 258,672 is: 356,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,876.48 : 634,623.04 = 258,672 : x
  2. Step 2: Convert to fraction form
    459,876.48/634,623.04 = 258,672/x
  3. Step 3: Cross multiply
    459,876.48x = 634,623.04 × 258,672
  4. Step 4: Simplify right side
    459,876.48x = 164,159,211,002.88
  5. Step 5: Solve for x
    x = 164,159,211,002.88/459,876.48
  6. Step 6: Final answer
    x = 356,963.70

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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.