Home / 1,142,397.45-1,713,954.30-687,485.06

Finding the Fourth Proportional to 1,142,397.45, 1,713,954.30 and 687,485.06

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Solution

The fourth proportional to 1,142,397.45, 1,713,954.30 and 687,485.06 is: 1,031,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,397.45 : 1,713,954.30 = 687,485.06 : x
  2. Step 2: Convert to fraction form
    1,142,397.45/1,713,954.30 = 687,485.06/x
  3. Step 3: Cross multiply
    1,142,397.45x = 1,713,954.30 × 687,485.06
  4. Step 4: Simplify right side
    1,142,397.45x = 1,178,317,966,202.99
  5. Step 5: Solve for x
    x = 1,178,317,966,202.99/1,142,397.45
  6. Step 6: Final answer
    x = 1,031,443.10

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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.