Home / 1,158,728.76-1,599,029.15-642,483.65

Finding the Fourth Proportional to 1,158,728.76, 1,599,029.15 and 642,483.65

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Solution

The fourth proportional to 1,158,728.76, 1,599,029.15 and 642,483.65 is: 886,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,728.76 : 1,599,029.15 = 642,483.65 : x
  2. Step 2: Convert to fraction form
    1,158,728.76/1,599,029.15 = 642,483.65/x
  3. Step 3: Cross multiply
    1,158,728.76x = 1,599,029.15 × 642,483.65
  4. Step 4: Simplify right side
    1,158,728.76x = 1,027,350,080,152.98
  5. Step 5: Solve for x
    x = 1,027,350,080,152.98/1,158,728.76
  6. Step 6: Final answer
    x = 886,618.27

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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.