Home / 628,929.84-867,911.94-342,444.72

Finding the Fourth Proportional to 628,929.84, 867,911.94 and 342,444.72

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Solution

The fourth proportional to 628,929.84, 867,911.94 and 342,444.72 is: 472,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,929.84 : 867,911.94 = 342,444.72 : x
  2. Step 2: Convert to fraction form
    628,929.84/867,911.94 = 342,444.72/x
  3. Step 3: Cross multiply
    628,929.84x = 867,911.94 × 342,444.72
  4. Step 4: Simplify right side
    628,929.84x = 297,211,861,277.96
  5. Step 5: Solve for x
    x = 297,211,861,277.96/628,929.84
  6. Step 6: Final answer
    x = 472,567.59

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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.