Home / 808,280.78-1,212,420.96-275,801.76

Finding the Fourth Proportional to 808,280.78, 1,212,420.96 and 275,801.76

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Solution

The fourth proportional to 808,280.78, 1,212,420.96 and 275,801.76 is: 413,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,280.78 : 1,212,420.96 = 275,801.76 : x
  2. Step 2: Convert to fraction form
    808,280.78/1,212,420.96 = 275,801.76/x
  3. Step 3: Cross multiply
    808,280.78x = 1,212,420.96 × 275,801.76
  4. Step 4: Simplify right side
    808,280.78x = 334,387,834,628.89
  5. Step 5: Solve for x
    x = 334,387,834,628.89/808,280.78
  6. Step 6: Final answer
    x = 413,702.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.