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Finding the Fourth Proportional to 879,772.80, 1,319,529.60 and 248,750.40

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Solution

The fourth proportional to 879,772.80, 1,319,529.60 and 248,750.40 is: 373,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,772.80 : 1,319,529.60 = 248,750.40 : x
  2. Step 2: Convert to fraction form
    879,772.80/1,319,529.60 = 248,750.40/x
  3. Step 3: Cross multiply
    879,772.80x = 1,319,529.60 × 248,750.40
  4. Step 4: Simplify right side
    879,772.80x = 328,233,515,811.84
  5. Step 5: Solve for x
    x = 328,233,515,811.84/879,772.80
  6. Step 6: Final answer
    x = 373,088.96

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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.