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Finding the Fourth Proportional to 709,890.32, 979,814.44 and 468,216.08

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Solution

The fourth proportional to 709,890.32, 979,814.44 and 468,216.08 is: 646,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,890.32 : 979,814.44 = 468,216.08 : x
  2. Step 2: Convert to fraction form
    709,890.32/979,814.44 = 468,216.08/x
  3. Step 3: Cross multiply
    709,890.32x = 979,814.44 × 468,216.08
  4. Step 4: Simplify right side
    709,890.32x = 458,764,876,224.20
  5. Step 5: Solve for x
    x = 458,764,876,224.20/709,890.32
  6. Step 6: Final answer
    x = 646,247.54

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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.