Home / 808,453.60-1,210,930.80-434,039.20

Finding the Fourth Proportional to 808,453.60, 1,210,930.80 and 434,039.20

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Solution

The fourth proportional to 808,453.60, 1,210,930.80 and 434,039.20 is: 650,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,453.60 : 1,210,930.80 = 434,039.20 : x
  2. Step 2: Convert to fraction form
    808,453.60/1,210,930.80 = 434,039.20/x
  3. Step 3: Cross multiply
    808,453.60x = 1,210,930.80 × 434,039.20
  4. Step 4: Simplify right side
    808,453.60x = 525,591,435,687.36
  5. Step 5: Solve for x
    x = 525,591,435,687.36/808,453.60
  6. Step 6: Final answer
    x = 650,119.48

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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.