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Finding the Fourth Proportional to 671,078.28, 926,088.03 and 369,272.28

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Solution

The fourth proportional to 671,078.28, 926,088.03 and 369,272.28 is: 509,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,078.28 : 926,088.03 = 369,272.28 : x
  2. Step 2: Convert to fraction form
    671,078.28/926,088.03 = 369,272.28/x
  3. Step 3: Cross multiply
    671,078.28x = 926,088.03 × 369,272.28
  4. Step 4: Simplify right side
    671,078.28x = 341,978,638,318.81
  5. Step 5: Solve for x
    x = 341,978,638,318.81/671,078.28
  6. Step 6: Final answer
    x = 509,595.75

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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.