Home / 1,245,018.39-1,868,070.79-435,983.48

Finding the Fourth Proportional to 1,245,018.39, 1,868,070.79 and 435,983.48

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Solution

The fourth proportional to 1,245,018.39, 1,868,070.79 and 435,983.48 is: 654,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,018.39 : 1,868,070.79 = 435,983.48 : x
  2. Step 2: Convert to fraction form
    1,245,018.39/1,868,070.79 = 435,983.48/x
  3. Step 3: Cross multiply
    1,245,018.39x = 1,868,070.79 × 435,983.48
  4. Step 4: Simplify right side
    1,245,018.39x = 814,447,996,905.28
  5. Step 5: Solve for x
    x = 814,447,996,905.28/1,245,018.39
  6. Step 6: Final answer
    x = 654,165.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.