Home / 1,238,166.65-1,707,946.09-778,553.55

Finding the Fourth Proportional to 1,238,166.65, 1,707,946.09 and 778,553.55

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Solution

The fourth proportional to 1,238,166.65, 1,707,946.09 and 778,553.55 is: 1,073,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,166.65 : 1,707,946.09 = 778,553.55 : x
  2. Step 2: Convert to fraction form
    1,238,166.65/1,707,946.09 = 778,553.55/x
  3. Step 3: Cross multiply
    1,238,166.65x = 1,707,946.09 × 778,553.55
  4. Step 4: Simplify right side
    1,238,166.65x = 1,329,727,489,631.74
  5. Step 5: Solve for x
    x = 1,329,727,489,631.74/1,238,166.65
  6. Step 6: Final answer
    x = 1,073,948.72

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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.