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Finding the Fourth Proportional to 647,037.79, 892,915.71 and 375,266.84

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Solution

The fourth proportional to 647,037.79, 892,915.71 and 375,266.84 is: 517,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,037.79 : 892,915.71 = 375,266.84 : x
  2. Step 2: Convert to fraction form
    647,037.79/892,915.71 = 375,266.84/x
  3. Step 3: Cross multiply
    647,037.79x = 892,915.71 × 375,266.84
  4. Step 4: Simplify right side
    647,037.79x = 335,081,656,878.06
  5. Step 5: Solve for x
    x = 335,081,656,878.06/647,037.79
  6. Step 6: Final answer
    x = 517,870.30

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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.