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Finding the Fourth Proportional to 671,077.78, 926,087.34 and 369,271.78

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Solution

The fourth proportional to 671,077.78, 926,087.34 and 369,271.78 is: 509,595.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,077.78 : 926,087.34 = 369,271.78 : x
  2. Step 2: Convert to fraction form
    671,077.78/926,087.34 = 369,271.78/x
  3. Step 3: Cross multiply
    671,077.78x = 926,087.34 × 369,271.78
  4. Step 4: Simplify right side
    671,077.78x = 341,977,921,634.87
  5. Step 5: Solve for x
    x = 341,977,921,634.87/671,077.78
  6. Step 6: Final answer
    x = 509,595.06

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1.5x scale

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.