Home / 869,544.02-1,199,970.78-487,570.84

Finding the Fourth Proportional to 869,544.02, 1,199,970.78 and 487,570.84

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Solution

The fourth proportional to 869,544.02, 1,199,970.78 and 487,570.84 is: 672,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,544.02 : 1,199,970.78 = 487,570.84 : x
  2. Step 2: Convert to fraction form
    869,544.02/1,199,970.78 = 487,570.84/x
  3. Step 3: Cross multiply
    869,544.02x = 1,199,970.78 × 487,570.84
  4. Step 4: Simplify right side
    869,544.02x = 585,070,761,180.06
  5. Step 5: Solve for x
    x = 585,070,761,180.06/869,544.02
  6. Step 6: Final answer
    x = 672,847.78

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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.