Home / 1,222,031.73-1,686,461.30-678,172.01

Finding the Fourth Proportional to 1,222,031.73, 1,686,461.30 and 678,172.01

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Solution

The fourth proportional to 1,222,031.73, 1,686,461.30 and 678,172.01 is: 935,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,031.73 : 1,686,461.30 = 678,172.01 : x
  2. Step 2: Convert to fraction form
    1,222,031.73/1,686,461.30 = 678,172.01/x
  3. Step 3: Cross multiply
    1,222,031.73x = 1,686,461.30 × 678,172.01
  4. Step 4: Simplify right side
    1,222,031.73x = 1,143,710,837,785.05
  5. Step 5: Solve for x
    x = 1,143,710,837,785.05/1,222,031.73
  6. Step 6: Final answer
    x = 935,909.28

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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.