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Finding the Fourth Proportional to 483,210.40, 724,124.40 and 355,856.80

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Solution

The fourth proportional to 483,210.40, 724,124.40 and 355,856.80 is: 533,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,210.40 : 724,124.40 = 355,856.80 : x
  2. Step 2: Convert to fraction form
    483,210.40/724,124.40 = 355,856.80/x
  3. Step 3: Cross multiply
    483,210.40x = 724,124.40 × 355,856.80
  4. Step 4: Simplify right side
    483,210.40x = 257,684,591,785.92
  5. Step 5: Solve for x
    x = 257,684,591,785.92/483,210.40
  6. Step 6: Final answer
    x = 533,276.17

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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.