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Finding the Fourth Proportional to 637,208.48, 879,340.74 and 350,722.40

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Solution

The fourth proportional to 637,208.48, 879,340.74 and 350,722.40 is: 483,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,208.48 : 879,340.74 = 350,722.40 : x
  2. Step 2: Convert to fraction form
    637,208.48/879,340.74 = 350,722.40/x
  3. Step 3: Cross multiply
    637,208.48x = 879,340.74 × 350,722.40
  4. Step 4: Simplify right side
    637,208.48x = 308,404,494,750.58
  5. Step 5: Solve for x
    x = 308,404,494,750.58/637,208.48
  6. Step 6: Final answer
    x = 483,993.08

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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.