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Finding the Fourth Proportional to 459,600.36, 634,266.54 and 278,209.67

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Solution

The fourth proportional to 459,600.36, 634,266.54 and 278,209.67 is: 383,940.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,600.36 : 634,266.54 = 278,209.67 : x
  2. Step 2: Convert to fraction form
    459,600.36/634,266.54 = 278,209.67/x
  3. Step 3: Cross multiply
    459,600.36x = 634,266.54 × 278,209.67
  4. Step 4: Simplify right side
    459,600.36x = 176,459,081,614.11
  5. Step 5: Solve for x
    x = 176,459,081,614.11/459,600.36
  6. Step 6: Final answer
    x = 383,940.26

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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.