Home / 876,420.68-1,315,006.32-277,430.60

Finding the Fourth Proportional to 876,420.68, 1,315,006.32 and 277,430.60

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Solution

The fourth proportional to 876,420.68, 1,315,006.32 and 277,430.60 is: 416,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,420.68 : 1,315,006.32 = 277,430.60 : x
  2. Step 2: Convert to fraction form
    876,420.68/1,315,006.32 = 277,430.60/x
  3. Step 3: Cross multiply
    876,420.68x = 1,315,006.32 × 277,430.60
  4. Step 4: Simplify right side
    876,420.68x = 364,822,992,361.39
  5. Step 5: Solve for x
    x = 364,822,992,361.39/876,420.68
  6. Step 6: Final answer
    x = 416,264.70

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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.