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Finding the Fourth Proportional to 671,086.68, 926,099.28 and 369,280.68

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Solution

The fourth proportional to 671,086.68, 926,099.28 and 369,280.68 is: 509,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,086.68 : 926,099.28 = 369,280.68 : x
  2. Step 2: Convert to fraction form
    671,086.68/926,099.28 = 369,280.68/x
  3. Step 3: Cross multiply
    671,086.68x = 926,099.28 × 369,280.68
  4. Step 4: Simplify right side
    671,086.68x = 341,990,571,865.91
  5. Step 5: Solve for x
    x = 341,990,571,865.91/671,086.68
  6. Step 6: Final answer
    x = 509,607.15

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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.