Home / 637,400.16-879,623.49-347,020.17

Finding the Fourth Proportional to 637,400.16, 879,623.49 and 347,020.17

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Solution

The fourth proportional to 637,400.16, 879,623.49 and 347,020.17 is: 478,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,400.16 : 879,623.49 = 347,020.17 : x
  2. Step 2: Convert to fraction form
    637,400.16/879,623.49 = 347,020.17/x
  3. Step 3: Cross multiply
    637,400.16x = 879,623.49 × 347,020.17
  4. Step 4: Simplify right side
    637,400.16x = 305,247,093,035.79
  5. Step 5: Solve for x
    x = 305,247,093,035.79/637,400.16
  6. Step 6: Final answer
    x = 478,893.97

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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.