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Finding the Fourth Proportional to 631,574.80, 945,979.80 and 548,630.80

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Solution

The fourth proportional to 631,574.80, 945,979.80 and 548,630.80 is: 821,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,574.80 : 945,979.80 = 548,630.80 : x
  2. Step 2: Convert to fraction form
    631,574.80/945,979.80 = 548,630.80/x
  3. Step 3: Cross multiply
    631,574.80x = 945,979.80 × 548,630.80
  4. Step 4: Simplify right side
    631,574.80x = 518,993,654,457.84
  5. Step 5: Solve for x
    x = 518,993,654,457.84/631,574.80
  6. Step 6: Final answer
    x = 821,745.35

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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.