Home / 953,287.50-1,430,128.17-279,390.90

Finding the Fourth Proportional to 953,287.50, 1,430,128.17 and 279,390.90

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Solution

The fourth proportional to 953,287.50, 1,430,128.17 and 279,390.90 is: 419,144.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,287.50 : 1,430,128.17 = 279,390.90 : x
  2. Step 2: Convert to fraction form
    953,287.50/1,430,128.17 = 279,390.90/x
  3. Step 3: Cross multiply
    953,287.50x = 1,430,128.17 × 279,390.90
  4. Step 4: Simplify right side
    953,287.50x = 399,564,796,531.65
  5. Step 5: Solve for x
    x = 399,564,796,531.65/953,287.50
  6. Step 6: Final answer
    x = 419,144.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.