Home / 1,142,395.45-1,713,951.30-687,483.06

Finding the Fourth Proportional to 1,142,395.45, 1,713,951.30 and 687,483.06

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Solution

The fourth proportional to 1,142,395.45, 1,713,951.30 and 687,483.06 is: 1,031,440.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,395.45 : 1,713,951.30 = 687,483.06 : x
  2. Step 2: Convert to fraction form
    1,142,395.45/1,713,951.30 = 687,483.06/x
  3. Step 3: Cross multiply
    1,142,395.45x = 1,713,951.30 × 687,483.06
  4. Step 4: Simplify right side
    1,142,395.45x = 1,178,312,484,414.98
  5. Step 5: Solve for x
    x = 1,178,312,484,414.98/1,142,395.45
  6. Step 6: Final answer
    x = 1,031,440.11

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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.