Home / 664,498.20-916,688.70-482,928.60

Finding the Fourth Proportional to 664,498.20, 916,688.70 and 482,928.60

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Solution

The fourth proportional to 664,498.20, 916,688.70 and 482,928.60 is: 666,209.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,498.20 : 916,688.70 = 482,928.60 : x
  2. Step 2: Convert to fraction form
    664,498.20/916,688.70 = 482,928.60/x
  3. Step 3: Cross multiply
    664,498.20x = 916,688.70 × 482,928.60
  4. Step 4: Simplify right side
    664,498.20x = 442,695,190,526.82
  5. Step 5: Solve for x
    x = 442,695,190,526.82/664,498.20
  6. Step 6: Final answer
    x = 666,209.77

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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.