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Finding the Fourth Proportional to 354,710.40, 532,065.60 and 348,878.40

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Solution

The fourth proportional to 354,710.40, 532,065.60 and 348,878.40 is: 523,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,710.40 : 532,065.60 = 348,878.40 : x
  2. Step 2: Convert to fraction form
    354,710.40/532,065.60 = 348,878.40/x
  3. Step 3: Cross multiply
    354,710.40x = 532,065.60 × 348,878.40
  4. Step 4: Simplify right side
    354,710.40x = 185,626,195,223.04
  5. Step 5: Solve for x
    x = 185,626,195,223.04/354,710.40
  6. Step 6: Final answer
    x = 523,317.60

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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.