Home / 1,920,424.32-2,880,986.40-658,379.52

Finding the Fourth Proportional to 1,920,424.32, 2,880,986.40 and 658,379.52

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Solution

The fourth proportional to 1,920,424.32, 2,880,986.40 and 658,379.52 is: 987,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,424.32 : 2,880,986.40 = 658,379.52 : x
  2. Step 2: Convert to fraction form
    1,920,424.32/2,880,986.40 = 658,379.52/x
  3. Step 3: Cross multiply
    1,920,424.32x = 2,880,986.40 × 658,379.52
  4. Step 4: Simplify right side
    1,920,424.32x = 1,896,782,443,158.53
  5. Step 5: Solve for x
    x = 1,896,782,443,158.53/1,920,424.32
  6. Step 6: Final answer
    x = 987,689.24

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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.