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Finding the Fourth Proportional to 671,763.88, 926,999.94 and 369,899.56

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Solution

The fourth proportional to 671,763.88, 926,999.94 and 369,899.56 is: 510,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,763.88 : 926,999.94 = 369,899.56 : x
  2. Step 2: Convert to fraction form
    671,763.88/926,999.94 = 369,899.56/x
  3. Step 3: Cross multiply
    671,763.88x = 926,999.94 × 369,899.56
  4. Step 4: Simplify right side
    671,763.88x = 342,896,869,926.03
  5. Step 5: Solve for x
    x = 342,896,869,926.03/671,763.88
  6. Step 6: Final answer
    x = 510,442.55

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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.