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Finding the Fourth Proportional to 452,642.65, 624,636.81 and 245,905.69

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Solution

The fourth proportional to 452,642.65, 624,636.81 and 245,905.69 is: 339,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,642.65 : 624,636.81 = 245,905.69 : x
  2. Step 2: Convert to fraction form
    452,642.65/624,636.81 = 245,905.69/x
  3. Step 3: Cross multiply
    452,642.65x = 624,636.81 × 245,905.69
  4. Step 4: Simplify right side
    452,642.65x = 153,601,745,762.45
  5. Step 5: Solve for x
    x = 153,601,745,762.45/452,642.65
  6. Step 6: Final answer
    x = 339,344.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.