Home / 638,224.07-880,734.05-347,844.81

Finding the Fourth Proportional to 638,224.07, 880,734.05 and 347,844.81

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Solution

The fourth proportional to 638,224.07, 880,734.05 and 347,844.81 is: 480,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,224.07 : 880,734.05 = 347,844.81 : x
  2. Step 2: Convert to fraction form
    638,224.07/880,734.05 = 347,844.81/x
  3. Step 3: Cross multiply
    638,224.07x = 880,734.05 × 347,844.81
  4. Step 4: Simplify right side
    638,224.07x = 306,358,768,282.78
  5. Step 5: Solve for x
    x = 306,358,768,282.78/638,224.07
  6. Step 6: Final answer
    x = 480,017.57

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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.