Home / 1,487,873.42-2,049,620.91-1,078,773.20

Finding the Fourth Proportional to 1,487,873.42, 2,049,620.91 and 1,078,773.20

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Solution

The fourth proportional to 1,487,873.42, 2,049,620.91 and 1,078,773.20 is: 1,486,064.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,873.42 : 2,049,620.91 = 1,078,773.20 : x
  2. Step 2: Convert to fraction form
    1,487,873.42/2,049,620.91 = 1,078,773.20/x
  3. Step 3: Cross multiply
    1,487,873.42x = 2,049,620.91 × 1,078,773.20
  4. Step 4: Simplify right side
    1,487,873.42x = 2,211,076,108,946.26
  5. Step 5: Solve for x
    x = 2,211,076,108,946.26/1,487,873.42
  6. Step 6: Final answer
    x = 1,486,064.66

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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.