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Finding the Fourth Proportional to 720,465.86, 1,080,674.16 and 341,568.11

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Solution

The fourth proportional to 720,465.86, 1,080,674.16 and 341,568.11 is: 512,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,465.86 : 1,080,674.16 = 341,568.11 : x
  2. Step 2: Convert to fraction form
    720,465.86/1,080,674.16 = 341,568.11/x
  3. Step 3: Cross multiply
    720,465.86x = 1,080,674.16 × 341,568.11
  4. Step 4: Simplify right side
    720,465.86x = 369,123,824,953.67
  5. Step 5: Solve for x
    x = 369,123,824,953.67/720,465.86
  6. Step 6: Final answer
    x = 512,340.48

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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.