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Finding the Fourth Proportional to 637,389.39, 879,563.97 and 350,853.51

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Solution

The fourth proportional to 637,389.39, 879,563.97 and 350,853.51 is: 484,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,389.39 : 879,563.97 = 350,853.51 : x
  2. Step 2: Convert to fraction form
    637,389.39/879,563.97 = 350,853.51/x
  3. Step 3: Cross multiply
    637,389.39x = 879,563.97 × 350,853.51
  4. Step 4: Simplify right side
    637,389.39x = 308,598,106,144.04
  5. Step 5: Solve for x
    x = 308,598,106,144.04/637,389.39
  6. Step 6: Final answer
    x = 484,159.47

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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.