Home / 459,869.10-634,631.67-278,542.50

Finding the Fourth Proportional to 459,869.10, 634,631.67 and 278,542.50

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Solution

The fourth proportional to 459,869.10, 634,631.67 and 278,542.50 is: 384,396.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,869.10 : 634,631.67 = 278,542.50 : x
  2. Step 2: Convert to fraction form
    459,869.10/634,631.67 = 278,542.50/x
  3. Step 3: Cross multiply
    459,869.10x = 634,631.67 × 278,542.50
  4. Step 4: Simplify right side
    459,869.10x = 176,771,891,940.98
  5. Step 5: Solve for x
    x = 176,771,891,940.98/459,869.10
  6. Step 6: Final answer
    x = 384,396.11

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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.