Home / 1,238,257.55-1,708,071.55-778,644.47

Finding the Fourth Proportional to 1,238,257.55, 1,708,071.55 and 778,644.47

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Solution

The fourth proportional to 1,238,257.55, 1,708,071.55 and 778,644.47 is: 1,074,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,257.55 : 1,708,071.55 = 778,644.47 : x
  2. Step 2: Convert to fraction form
    1,238,257.55/1,708,071.55 = 778,644.47/x
  3. Step 3: Cross multiply
    1,238,257.55x = 1,708,071.55 × 778,644.47
  4. Step 4: Simplify right side
    1,238,257.55x = 1,329,980,469,095.40
  5. Step 5: Solve for x
    x = 1,329,980,469,095.40/1,238,257.55
  6. Step 6: Final answer
    x = 1,074,074.18

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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.