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Finding the Fourth Proportional to 354,903.40, 532,355.10 and 349,071.40

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Solution

The fourth proportional to 354,903.40, 532,355.10 and 349,071.40 is: 523,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,903.40 : 532,355.10 = 349,071.40 : x
  2. Step 2: Convert to fraction form
    354,903.40/532,355.10 = 349,071.40/x
  3. Step 3: Cross multiply
    354,903.40x = 532,355.10 × 349,071.40
  4. Step 4: Simplify right side
    354,903.40x = 185,829,940,054.14
  5. Step 5: Solve for x
    x = 185,829,940,054.14/354,903.40
  6. Step 6: Final answer
    x = 523,607.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.