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Finding the Fourth Proportional to 720,510.14, 1,080,783.74 and 341,342.06

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Solution

The fourth proportional to 720,510.14, 1,080,783.74 and 341,342.06 is: 512,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,510.14 : 1,080,783.74 = 341,342.06 : x
  2. Step 2: Convert to fraction form
    720,510.14/1,080,783.74 = 341,342.06/x
  3. Step 3: Cross multiply
    720,510.14x = 1,080,783.74 × 341,342.06
  4. Step 4: Simplify right side
    720,510.14x = 368,916,948,226.10
  5. Step 5: Solve for x
    x = 368,916,948,226.10/720,510.14
  6. Step 6: Final answer
    x = 512,021.87

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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.