Home / 808,212.60-1,213,631.10-543,148.20

Finding the Fourth Proportional to 808,212.60, 1,213,631.10 and 543,148.20

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Solution

The fourth proportional to 808,212.60, 1,213,631.10 and 543,148.20 is: 815,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,212.60 : 1,213,631.10 = 543,148.20 : x
  2. Step 2: Convert to fraction form
    808,212.60/1,213,631.10 = 543,148.20/x
  3. Step 3: Cross multiply
    808,212.60x = 1,213,631.10 × 543,148.20
  4. Step 4: Simplify right side
    808,212.60x = 659,181,547,429.02
  5. Step 5: Solve for x
    x = 659,181,547,429.02/808,212.60
  6. Step 6: Final answer
    x = 815,604.15

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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.