Home / 879,956.68-1,319,939.88-318,976.60

Finding the Fourth Proportional to 879,956.68, 1,319,939.88 and 318,976.60

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Solution

The fourth proportional to 879,956.68, 1,319,939.88 and 318,976.60 is: 478,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,956.68 : 1,319,939.88 = 318,976.60 : x
  2. Step 2: Convert to fraction form
    879,956.68/1,319,939.88 = 318,976.60/x
  3. Step 3: Cross multiply
    879,956.68x = 1,319,939.88 × 318,976.60
  4. Step 4: Simplify right side
    879,956.68x = 421,029,935,126.81
  5. Step 5: Solve for x
    x = 421,029,935,126.81/879,956.68
  6. Step 6: Final answer
    x = 478,466.66

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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.