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Finding the Fourth Proportional to 879,856.80, 1,319,655.60 and 248,834.40

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Solution

The fourth proportional to 879,856.80, 1,319,655.60 and 248,834.40 is: 373,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,856.80 : 1,319,655.60 = 248,834.40 : x
  2. Step 2: Convert to fraction form
    879,856.80/1,319,655.60 = 248,834.40/x
  3. Step 3: Cross multiply
    879,856.80x = 1,319,655.60 × 248,834.40
  4. Step 4: Simplify right side
    879,856.80x = 328,375,709,432.64
  5. Step 5: Solve for x
    x = 328,375,709,432.64/879,856.80
  6. Step 6: Final answer
    x = 373,214.95

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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.