Home / 1,397,211.20-2,091,669.60-924,430.40

Finding the Fourth Proportional to 1,397,211.20, 2,091,669.60 and 924,430.40

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Solution

The fourth proportional to 1,397,211.20, 2,091,669.60 and 924,430.40 is: 1,383,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,211.20 : 2,091,669.60 = 924,430.40 : x
  2. Step 2: Convert to fraction form
    1,397,211.20/2,091,669.60 = 924,430.40/x
  3. Step 3: Cross multiply
    1,397,211.20x = 2,091,669.60 × 924,430.40
  4. Step 4: Simplify right side
    1,397,211.20x = 1,933,602,964,995.84
  5. Step 5: Solve for x
    x = 1,933,602,964,995.84/1,397,211.20
  6. Step 6: Final answer
    x = 1,383,901.71

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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.