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Finding the Fourth Proportional to 483,323.40, 724,293.90 and 355,969.80

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Solution

The fourth proportional to 483,323.40, 724,293.90 and 355,969.80 is: 533,445.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,323.40 : 724,293.90 = 355,969.80 : x
  2. Step 2: Convert to fraction form
    483,323.40/724,293.90 = 355,969.80/x
  3. Step 3: Cross multiply
    483,323.40x = 724,293.90 × 355,969.80
  4. Step 4: Simplify right side
    483,323.40x = 257,826,754,724.22
  5. Step 5: Solve for x
    x = 257,826,754,724.22/483,323.40
  6. Step 6: Final answer
    x = 533,445.63

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1.5x scale

Why These Related Problems?

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