Home / 717,929.68-990,749.52-395,651.32

Finding the Fourth Proportional to 717,929.68, 990,749.52 and 395,651.32

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Solution

The fourth proportional to 717,929.68, 990,749.52 and 395,651.32 is: 546,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,929.68 : 990,749.52 = 395,651.32 : x
  2. Step 2: Convert to fraction form
    717,929.68/990,749.52 = 395,651.32/x
  3. Step 3: Cross multiply
    717,929.68x = 990,749.52 × 395,651.32
  4. Step 4: Simplify right side
    717,929.68x = 391,991,355,377.37
  5. Step 5: Solve for x
    x = 391,991,355,377.37/717,929.68
  6. Step 6: Final answer
    x = 546,002.44

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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.