Home / 877,792.20-1,317,016.20-345,684.12

Finding the Fourth Proportional to 877,792.20, 1,317,016.20 and 345,684.12

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Solution

The fourth proportional to 877,792.20, 1,317,016.20 and 345,684.12 is: 518,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,792.20 : 1,317,016.20 = 345,684.12 : x
  2. Step 2: Convert to fraction form
    877,792.20/1,317,016.20 = 345,684.12/x
  3. Step 3: Cross multiply
    877,792.20x = 1,317,016.20 × 345,684.12
  4. Step 4: Simplify right side
    877,792.20x = 455,271,586,122.74
  5. Step 5: Solve for x
    x = 455,271,586,122.74/877,792.20
  6. Step 6: Final answer
    x = 518,655.31

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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.