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Finding the Fourth Proportional to 578,672.05, 798,382.02 and 374,880.10

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Solution

The fourth proportional to 578,672.05, 798,382.02 and 374,880.10 is: 517,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,672.05 : 798,382.02 = 374,880.10 : x
  2. Step 2: Convert to fraction form
    578,672.05/798,382.02 = 374,880.10/x
  3. Step 3: Cross multiply
    578,672.05x = 798,382.02 × 374,880.10
  4. Step 4: Simplify right side
    578,672.05x = 299,297,531,495.80
  5. Step 5: Solve for x
    x = 299,297,531,495.80/578,672.05
  6. Step 6: Final answer
    x = 517,214.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.