Home / 1,345,461.44-1,856,868-1,005,339.20

Finding the Fourth Proportional to 1,345,461.44, 1,856,868 and 1,005,339.20

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Solution

The fourth proportional to 1,345,461.44, 1,856,868 and 1,005,339.20 is: 1,387,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,461.44 : 1,856,868 = 1,005,339.20 : x
  2. Step 2: Convert to fraction form
    1,345,461.44/1,856,868 = 1,005,339.20/x
  3. Step 3: Cross multiply
    1,345,461.44x = 1,856,868 × 1,005,339.20
  4. Step 4: Simplify right side
    1,345,461.44x = 1,866,782,189,625.60
  5. Step 5: Solve for x
    x = 1,866,782,189,625.60/1,345,461.44
  6. Step 6: Final answer
    x = 1,387,466.14

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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.