Home / 1,292,065.95-1,938,276.24-438,908.55

Finding the Fourth Proportional to 1,292,065.95, 1,938,276.24 and 438,908.55

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Solution

The fourth proportional to 1,292,065.95, 1,938,276.24 and 438,908.55 is: 658,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,065.95 : 1,938,276.24 = 438,908.55 : x
  2. Step 2: Convert to fraction form
    1,292,065.95/1,938,276.24 = 438,908.55/x
  3. Step 3: Cross multiply
    1,292,065.95x = 1,938,276.24 × 438,908.55
  4. Step 4: Simplify right side
    1,292,065.95x = 850,726,013,997.85
  5. Step 5: Solve for x
    x = 850,726,013,997.85/1,292,065.95
  6. Step 6: Final answer
    x = 658,423.06

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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.