Home / 1,680,285.72-2,319,019.80-1,068,499.20

Finding the Fourth Proportional to 1,680,285.72, 2,319,019.80 and 1,068,499.20

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Solution

The fourth proportional to 1,680,285.72, 2,319,019.80 and 1,068,499.20 is: 1,474,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,285.72 : 2,319,019.80 = 1,068,499.20 : x
  2. Step 2: Convert to fraction form
    1,680,285.72/2,319,019.80 = 1,068,499.20/x
  3. Step 3: Cross multiply
    1,680,285.72x = 2,319,019.80 × 1,068,499.20
  4. Step 4: Simplify right side
    1,680,285.72x = 2,477,870,801,084.16
  5. Step 5: Solve for x
    x = 2,477,870,801,084.16/1,680,285.72
  6. Step 6: Final answer
    x = 1,474,672.30

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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.