Home / 769,276.17-1,061,641.87-463,448.81

Finding the Fourth Proportional to 769,276.17, 1,061,641.87 and 463,448.81

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Solution

The fourth proportional to 769,276.17, 1,061,641.87 and 463,448.81 is: 639,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,276.17 : 1,061,641.87 = 463,448.81 : x
  2. Step 2: Convert to fraction form
    769,276.17/1,061,641.87 = 463,448.81/x
  3. Step 3: Cross multiply
    769,276.17x = 1,061,641.87 × 463,448.81
  4. Step 4: Simplify right side
    769,276.17x = 492,016,662,793.16
  5. Step 5: Solve for x
    x = 492,016,662,793.16/769,276.17
  6. Step 6: Final answer
    x = 639,583.91

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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.