Home / 1,298,095.86-1,791,362.48-717,358.15

Finding the Fourth Proportional to 1,298,095.86, 1,791,362.48 and 717,358.15

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Solution

The fourth proportional to 1,298,095.86, 1,791,362.48 and 717,358.15 is: 989,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,095.86 : 1,791,362.48 = 717,358.15 : x
  2. Step 2: Convert to fraction form
    1,298,095.86/1,791,362.48 = 717,358.15/x
  3. Step 3: Cross multiply
    1,298,095.86x = 1,791,362.48 × 717,358.15
  4. Step 4: Simplify right side
    1,298,095.86x = 1,285,048,474,632.21
  5. Step 5: Solve for x
    x = 1,285,048,474,632.21/1,298,095.86
  6. Step 6: Final answer
    x = 989,948.83

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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.