Home / 709,464.79-979,083.05-403,585.50

Finding the Fourth Proportional to 709,464.79, 979,083.05 and 403,585.50

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Solution

The fourth proportional to 709,464.79, 979,083.05 and 403,585.50 is: 556,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,464.79 : 979,083.05 = 403,585.50 : x
  2. Step 2: Convert to fraction form
    709,464.79/979,083.05 = 403,585.50/x
  3. Step 3: Cross multiply
    709,464.79x = 979,083.05 × 403,585.50
  4. Step 4: Simplify right side
    709,464.79x = 395,143,723,929.41
  5. Step 5: Solve for x
    x = 395,143,723,929.41/709,464.79
  6. Step 6: Final answer
    x = 556,960.30

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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.