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Finding the Fourth Proportional to 519,632.08, 716,780.46 and 315,579.28

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Solution

The fourth proportional to 519,632.08, 716,780.46 and 315,579.28 is: 435,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,632.08 : 716,780.46 = 315,579.28 : x
  2. Step 2: Convert to fraction form
    519,632.08/716,780.46 = 315,579.28/x
  3. Step 3: Cross multiply
    519,632.08x = 716,780.46 × 315,579.28
  4. Step 4: Simplify right side
    519,632.08x = 226,201,061,484.87
  5. Step 5: Solve for x
    x = 226,201,061,484.87/519,632.08
  6. Step 6: Final answer
    x = 435,310.04

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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.