Home / 1,223,729.52-1,688,736.60-687,174

Finding the Fourth Proportional to 1,223,729.52, 1,688,736.60 and 687,174

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Solution

The fourth proportional to 1,223,729.52, 1,688,736.60 and 687,174 is: 948,294.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,729.52 : 1,688,736.60 = 687,174 : x
  2. Step 2: Convert to fraction form
    1,223,729.52/1,688,736.60 = 687,174/x
  3. Step 3: Cross multiply
    1,223,729.52x = 1,688,736.60 × 687,174
  4. Step 4: Simplify right side
    1,223,729.52x = 1,160,455,884,368.40
  5. Step 5: Solve for x
    x = 1,160,455,884,368.40/1,223,729.52
  6. Step 6: Final answer
    x = 948,294.43

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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.