Home / 669,339.68-1,001,499.96-398,477.06

Finding the Fourth Proportional to 669,339.68, 1,001,499.96 and 398,477.06

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Solution

The fourth proportional to 669,339.68, 1,001,499.96 and 398,477.06 is: 596,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,339.68 : 1,001,499.96 = 398,477.06 : x
  2. Step 2: Convert to fraction form
    669,339.68/1,001,499.96 = 398,477.06/x
  3. Step 3: Cross multiply
    669,339.68x = 1,001,499.96 × 398,477.06
  4. Step 4: Simplify right side
    669,339.68x = 399,074,759,650.92
  5. Step 5: Solve for x
    x = 399,074,759,650.92/669,339.68
  6. Step 6: Final answer
    x = 596,221.58

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1.5x scale

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.