Home / 1,130,690.72-1,560,354.36-621,382.16

Finding the Fourth Proportional to 1,130,690.72, 1,560,354.36 and 621,382.16

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Solution

The fourth proportional to 1,130,690.72, 1,560,354.36 and 621,382.16 is: 857,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,690.72 : 1,560,354.36 = 621,382.16 : x
  2. Step 2: Convert to fraction form
    1,130,690.72/1,560,354.36 = 621,382.16/x
  3. Step 3: Cross multiply
    1,130,690.72x = 1,560,354.36 × 621,382.16
  4. Step 4: Simplify right side
    1,130,690.72x = 969,576,362,582.22
  5. Step 5: Solve for x
    x = 969,576,362,582.22/1,130,690.72
  6. Step 6: Final answer
    x = 857,508.02

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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.