Home / 1,053,230.64-1,453,632-645,559.20

Finding the Fourth Proportional to 1,053,230.64, 1,453,632 and 645,559.20

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Solution

The fourth proportional to 1,053,230.64, 1,453,632 and 645,559.20 is: 890,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,230.64 : 1,453,632 = 645,559.20 : x
  2. Step 2: Convert to fraction form
    1,053,230.64/1,453,632 = 645,559.20/x
  3. Step 3: Cross multiply
    1,053,230.64x = 1,453,632 × 645,559.20
  4. Step 4: Simplify right side
    1,053,230.64x = 938,405,511,014.40
  5. Step 5: Solve for x
    x = 938,405,511,014.40/1,053,230.64
  6. Step 6: Final answer
    x = 890,978.17

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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.