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Finding the Fourth Proportional to 849,841.60, 1,273,401.60 and 449,960.80

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Solution

The fourth proportional to 849,841.60, 1,273,401.60 and 449,960.80 is: 674,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,841.60 : 1,273,401.60 = 449,960.80 : x
  2. Step 2: Convert to fraction form
    849,841.60/1,273,401.60 = 449,960.80/x
  3. Step 3: Cross multiply
    849,841.60x = 1,273,401.60 × 449,960.80
  4. Step 4: Simplify right side
    849,841.60x = 572,980,802,657.28
  5. Step 5: Solve for x
    x = 572,980,802,657.28/849,841.60
  6. Step 6: Final answer
    x = 674,220.70

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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.