Home / 1,223,731.02-1,688,738.67-687,175.50

Finding the Fourth Proportional to 1,223,731.02, 1,688,738.67 and 687,175.50

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Solution

The fourth proportional to 1,223,731.02, 1,688,738.67 and 687,175.50 is: 948,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,731.02 : 1,688,738.67 = 687,175.50 : x
  2. Step 2: Convert to fraction form
    1,223,731.02/1,688,738.67 = 687,175.50/x
  3. Step 3: Cross multiply
    1,223,731.02x = 1,688,738.67 × 687,175.50
  4. Step 4: Simplify right side
    1,223,731.02x = 1,160,459,839,926.59
  5. Step 5: Solve for x
    x = 1,160,459,839,926.59/1,223,731.02
  6. Step 6: Final answer
    x = 948,296.50

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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.