Home / 470,890.80-706,336.20-432,183.60

Finding the Fourth Proportional to 470,890.80, 706,336.20 and 432,183.60

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Solution

The fourth proportional to 470,890.80, 706,336.20 and 432,183.60 is: 648,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,890.80 : 706,336.20 = 432,183.60 : x
  2. Step 2: Convert to fraction form
    470,890.80/706,336.20 = 432,183.60/x
  3. Step 3: Cross multiply
    470,890.80x = 706,336.20 × 432,183.60
  4. Step 4: Simplify right side
    470,890.80x = 305,266,921,726.32
  5. Step 5: Solve for x
    x = 305,266,921,726.32/470,890.80
  6. Step 6: Final answer
    x = 648,275.40

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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.