Home / 687,368.94-1,031,070.69-188,731.50

Finding the Fourth Proportional to 687,368.94, 1,031,070.69 and 188,731.50

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Solution

The fourth proportional to 687,368.94, 1,031,070.69 and 188,731.50 is: 283,101.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,368.94 : 1,031,070.69 = 188,731.50 : x
  2. Step 2: Convert to fraction form
    687,368.94/1,031,070.69 = 188,731.50/x
  3. Step 3: Cross multiply
    687,368.94x = 1,031,070.69 × 188,731.50
  4. Step 4: Simplify right side
    687,368.94x = 194,595,517,929.74
  5. Step 5: Solve for x
    x = 194,595,517,929.74/687,368.94
  6. Step 6: Final answer
    x = 283,101.99

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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.