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Finding the Fourth Proportional to 493,047.40, 738,015.90 and 353,079.40

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Solution

The fourth proportional to 493,047.40, 738,015.90 and 353,079.40 is: 528,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,047.40 : 738,015.90 = 353,079.40 : x
  2. Step 2: Convert to fraction form
    493,047.40/738,015.90 = 353,079.40/x
  3. Step 3: Cross multiply
    493,047.40x = 738,015.90 × 353,079.40
  4. Step 4: Simplify right side
    493,047.40x = 260,578,211,162.46
  5. Step 5: Solve for x
    x = 260,578,211,162.46/493,047.40
  6. Step 6: Final answer
    x = 528,505.40

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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.