Home / 1,264,408.34-1,745,018.72-774,702.84

Finding the Fourth Proportional to 1,264,408.34, 1,745,018.72 and 774,702.84

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Solution

The fourth proportional to 1,264,408.34, 1,745,018.72 and 774,702.84 is: 1,069,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,408.34 : 1,745,018.72 = 774,702.84 : x
  2. Step 2: Convert to fraction form
    1,264,408.34/1,745,018.72 = 774,702.84/x
  3. Step 3: Cross multiply
    1,264,408.34x = 1,745,018.72 × 774,702.84
  4. Step 4: Simplify right side
    1,264,408.34x = 1,351,870,960,173.92
  5. Step 5: Solve for x
    x = 1,351,870,960,173.92/1,264,408.34
  6. Step 6: Final answer
    x = 1,069,172.77

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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.