Home / 5,309,047.76-7,963,600.80-1,319,959.76

Finding the Fourth Proportional to 5,309,047.76, 7,963,600.80 and 1,319,959.76

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Solution

The fourth proportional to 5,309,047.76, 7,963,600.80 and 1,319,959.76 is: 1,979,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309,047.76 : 7,963,600.80 = 1,319,959.76 : x
  2. Step 2: Convert to fraction form
    5,309,047.76/7,963,600.80 = 1,319,959.76/x
  3. Step 3: Cross multiply
    5,309,047.76x = 7,963,600.80 × 1,319,959.76
  4. Step 4: Simplify right side
    5,309,047.76x = 10,511,632,600,703.81
  5. Step 5: Solve for x
    x = 10,511,632,600,703.81/5,309,047.76
  6. Step 6: Final answer
    x = 1,979,946.89

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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.