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Finding the Fourth Proportional to 877,405.60, 1,313,775.60 and 560,144.80

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Solution

The fourth proportional to 877,405.60, 1,313,775.60 and 560,144.80 is: 838,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,405.60 : 1,313,775.60 = 560,144.80 : x
  2. Step 2: Convert to fraction form
    877,405.60/1,313,775.60 = 560,144.80/x
  3. Step 3: Cross multiply
    877,405.60x = 1,313,775.60 × 560,144.80
  4. Step 4: Simplify right side
    877,405.60x = 735,904,570,706.88
  5. Step 5: Solve for x
    x = 735,904,570,706.88/877,405.60
  6. Step 6: Final answer
    x = 838,727.92

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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.