Home / 763,539.57-1,053,697.26-419,407.32

Finding the Fourth Proportional to 763,539.57, 1,053,697.26 and 419,407.32

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Solution

The fourth proportional to 763,539.57, 1,053,697.26 and 419,407.32 is: 578,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,539.57 : 1,053,697.26 = 419,407.32 : x
  2. Step 2: Convert to fraction form
    763,539.57/1,053,697.26 = 419,407.32/x
  3. Step 3: Cross multiply
    763,539.57x = 1,053,697.26 × 419,407.32
  4. Step 4: Simplify right side
    763,539.57x = 441,928,343,907.94
  5. Step 5: Solve for x
    x = 441,928,343,907.94/763,539.57
  6. Step 6: Final answer
    x = 578,789.05

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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.