Home / 993,690.84-1,370,340.54-667,740.36

Finding the Fourth Proportional to 993,690.84, 1,370,340.54 and 667,740.36

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Solution

The fourth proportional to 993,690.84, 1,370,340.54 and 667,740.36 is: 920,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,690.84 : 1,370,340.54 = 667,740.36 : x
  2. Step 2: Convert to fraction form
    993,690.84/1,370,340.54 = 667,740.36/x
  3. Step 3: Cross multiply
    993,690.84x = 1,370,340.54 × 667,740.36
  4. Step 4: Simplify right side
    993,690.84x = 915,031,685,502.20
  5. Step 5: Solve for x
    x = 915,031,685,502.20/993,690.84
  6. Step 6: Final answer
    x = 920,841.42

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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.