Home / 874,606.18-1,310,632.71-387,700.90

Finding the Fourth Proportional to 874,606.18, 1,310,632.71 and 387,700.90

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Solution

The fourth proportional to 874,606.18, 1,310,632.71 and 387,700.90 is: 580,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,606.18 : 1,310,632.71 = 387,700.90 : x
  2. Step 2: Convert to fraction form
    874,606.18/1,310,632.71 = 387,700.90/x
  3. Step 3: Cross multiply
    874,606.18x = 1,310,632.71 × 387,700.90
  4. Step 4: Simplify right side
    874,606.18x = 508,133,481,236.44
  5. Step 5: Solve for x
    x = 508,133,481,236.44/874,606.18
  6. Step 6: Final answer
    x = 580,985.47

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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.