Home / 1,319,486.40-1,979,114.40-433,022.40

Finding the Fourth Proportional to 1,319,486.40, 1,979,114.40 and 433,022.40

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Solution

The fourth proportional to 1,319,486.40, 1,979,114.40 and 433,022.40 is: 649,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,486.40 : 1,979,114.40 = 433,022.40 : x
  2. Step 2: Convert to fraction form
    1,319,486.40/1,979,114.40 = 433,022.40/x
  3. Step 3: Cross multiply
    1,319,486.40x = 1,979,114.40 × 433,022.40
  4. Step 4: Simplify right side
    1,319,486.40x = 857,000,867,362.56
  5. Step 5: Solve for x
    x = 857,000,867,362.56/1,319,486.40
  6. Step 6: Final answer
    x = 649,495.79

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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.