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Finding the Fourth Proportional to 637,230.78, 879,371.64 and 350,744.76

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Solution

The fourth proportional to 637,230.78, 879,371.64 and 350,744.76 is: 484,024.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,230.78 : 879,371.64 = 350,744.76 : x
  2. Step 2: Convert to fraction form
    637,230.78/879,371.64 = 350,744.76/x
  3. Step 3: Cross multiply
    637,230.78x = 879,371.64 × 350,744.76
  4. Step 4: Simplify right side
    637,230.78x = 308,434,994,822.61
  5. Step 5: Solve for x
    x = 308,434,994,822.61/637,230.78
  6. Step 6: Final answer
    x = 484,024.01

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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.