Home / 905,795.12-1,359,065.28-400,089.44

Finding the Fourth Proportional to 905,795.12, 1,359,065.28 and 400,089.44

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Solution

The fourth proportional to 905,795.12, 1,359,065.28 and 400,089.44 is: 600,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,795.12 : 1,359,065.28 = 400,089.44 : x
  2. Step 2: Convert to fraction form
    905,795.12/1,359,065.28 = 400,089.44/x
  3. Step 3: Cross multiply
    905,795.12x = 1,359,065.28 × 400,089.44
  4. Step 4: Simplify right side
    905,795.12x = 543,747,666,798.64
  5. Step 5: Solve for x
    x = 543,747,666,798.64/905,795.12
  6. Step 6: Final answer
    x = 600,298.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.