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Finding the Fourth Proportional to 643,297, 887,750.58 and 375,076.84

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Solution

The fourth proportional to 643,297, 887,750.58 and 375,076.84 is: 517,606.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,297 : 887,750.58 = 375,076.84 : x
  2. Step 2: Convert to fraction form
    643,297/887,750.58 = 375,076.84/x
  3. Step 3: Cross multiply
    643,297x = 887,750.58 × 375,076.84
  4. Step 4: Simplify right side
    643,297x = 332,974,682,254.57
  5. Step 5: Solve for x
    x = 332,974,682,254.57/643,297
  6. Step 6: Final answer
    x = 517,606.46

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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.