Home / 724,403.40-1,085,730.30-369,234.60

Finding the Fourth Proportional to 724,403.40, 1,085,730.30 and 369,234.60

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Solution

The fourth proportional to 724,403.40, 1,085,730.30 and 369,234.60 is: 553,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,403.40 : 1,085,730.30 = 369,234.60 : x
  2. Step 2: Convert to fraction form
    724,403.40/1,085,730.30 = 369,234.60/x
  3. Step 3: Cross multiply
    724,403.40x = 1,085,730.30 × 369,234.60
  4. Step 4: Simplify right side
    724,403.40x = 400,889,193,028.38
  5. Step 5: Solve for x
    x = 400,889,193,028.38/724,403.40
  6. Step 6: Final answer
    x = 553,406.01

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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.