Home / 999,968.32-1,379,922.24-570,387.52

Finding the Fourth Proportional to 999,968.32, 1,379,922.24 and 570,387.52

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Solution

The fourth proportional to 999,968.32, 1,379,922.24 and 570,387.52 is: 787,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,968.32 : 1,379,922.24 = 570,387.52 : x
  2. Step 2: Convert to fraction form
    999,968.32/1,379,922.24 = 570,387.52/x
  3. Step 3: Cross multiply
    999,968.32x = 1,379,922.24 × 570,387.52
  4. Step 4: Simplify right side
    999,968.32x = 787,090,424,266.45
  5. Step 5: Solve for x
    x = 787,090,424,266.45/999,968.32
  6. Step 6: Final answer
    x = 787,115.36

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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.