Home / 484,420.08-668,592.20-320,788.16

Finding the Fourth Proportional to 484,420.08, 668,592.20 and 320,788.16

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Solution

The fourth proportional to 484,420.08, 668,592.20 and 320,788.16 is: 442,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,420.08 : 668,592.20 = 320,788.16 : x
  2. Step 2: Convert to fraction form
    484,420.08/668,592.20 = 320,788.16/x
  3. Step 3: Cross multiply
    484,420.08x = 668,592.20 × 320,788.16
  4. Step 4: Simplify right side
    484,420.08x = 214,476,461,628.35
  5. Step 5: Solve for x
    x = 214,476,461,628.35/484,420.08
  6. Step 6: Final answer
    x = 442,748.91

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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.