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Finding the Fourth Proportional to 879,893.80, 1,319,711.10 and 248,871.40

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Solution

The fourth proportional to 879,893.80, 1,319,711.10 and 248,871.40 is: 373,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,893.80 : 1,319,711.10 = 248,871.40 : x
  2. Step 2: Convert to fraction form
    879,893.80/1,319,711.10 = 248,871.40/x
  3. Step 3: Cross multiply
    879,893.80x = 1,319,711.10 × 248,871.40
  4. Step 4: Simplify right side
    879,893.80x = 328,438,349,052.54
  5. Step 5: Solve for x
    x = 328,438,349,052.54/879,893.80
  6. Step 6: Final answer
    x = 373,270.44

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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.