Home / 749,575.27-1,034,410.79-405,411.58

Finding the Fourth Proportional to 749,575.27, 1,034,410.79 and 405,411.58

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Solution

The fourth proportional to 749,575.27, 1,034,410.79 and 405,411.58 is: 559,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,575.27 : 1,034,410.79 = 405,411.58 : x
  2. Step 2: Convert to fraction form
    749,575.27/1,034,410.79 = 405,411.58/x
  3. Step 3: Cross multiply
    749,575.27x = 1,034,410.79 × 405,411.58
  4. Step 4: Simplify right side
    749,575.27x = 419,362,112,769.05
  5. Step 5: Solve for x
    x = 419,362,112,769.05/749,575.27
  6. Step 6: Final answer
    x = 559,466.32

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1.5x scale

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.