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Finding the Fourth Proportional to 490,394.16, 736,698.58 and 290,845.46

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Solution

The fourth proportional to 490,394.16, 736,698.58 and 290,845.46 is: 436,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,394.16 : 736,698.58 = 290,845.46 : x
  2. Step 2: Convert to fraction form
    490,394.16/736,698.58 = 290,845.46/x
  3. Step 3: Cross multiply
    490,394.16x = 736,698.58 × 290,845.46
  4. Step 4: Simplify right side
    490,394.16x = 214,265,437,381.45
  5. Step 5: Solve for x
    x = 214,265,437,381.45/490,394.16
  6. Step 6: Final answer
    x = 436,924.94

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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.