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Finding the Fourth Proportional to 637,392.77, 879,568.63 and 350,856.89

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Solution

The fourth proportional to 637,392.77, 879,568.63 and 350,856.89 is: 484,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,392.77 : 879,568.63 = 350,856.89 : x
  2. Step 2: Convert to fraction form
    637,392.77/879,568.63 = 350,856.89/x
  3. Step 3: Cross multiply
    637,392.77x = 879,568.63 × 350,856.89
  4. Step 4: Simplify right side
    637,392.77x = 308,602,707,911.23
  5. Step 5: Solve for x
    x = 308,602,707,911.23/637,392.77
  6. Step 6: Final answer
    x = 484,164.12

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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.