Home / 808,547.70-1,212,821.55-509,366.10

Finding the Fourth Proportional to 808,547.70, 1,212,821.55 and 509,366.10

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Solution

The fourth proportional to 808,547.70, 1,212,821.55 and 509,366.10 is: 764,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,547.70 : 1,212,821.55 = 509,366.10 : x
  2. Step 2: Convert to fraction form
    808,547.70/1,212,821.55 = 509,366.10/x
  3. Step 3: Cross multiply
    808,547.70x = 1,212,821.55 × 509,366.10
  4. Step 4: Simplify right side
    808,547.70x = 617,770,182,919.46
  5. Step 5: Solve for x
    x = 617,770,182,919.46/808,547.70
  6. Step 6: Final answer
    x = 764,049.15

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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.