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Finding the Fourth Proportional to 637,289.68, 879,484.80 and 350,836.40

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Solution

The fourth proportional to 637,289.68, 879,484.80 and 350,836.40 is: 484,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,289.68 : 879,484.80 = 350,836.40 : x
  2. Step 2: Convert to fraction form
    637,289.68/879,484.80 = 350,836.40/x
  3. Step 3: Cross multiply
    637,289.68x = 879,484.80 × 350,836.40
  4. Step 4: Simplify right side
    637,289.68x = 308,555,281,086.72
  5. Step 5: Solve for x
    x = 308,555,281,086.72/637,289.68
  6. Step 6: Final answer
    x = 484,168.02

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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.