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Finding the Fourth Proportional to 637,203.48, 879,333.84 and 350,717.40

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Solution

The fourth proportional to 637,203.48, 879,333.84 and 350,717.40 is: 483,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,203.48 : 879,333.84 = 350,717.40 : x
  2. Step 2: Convert to fraction form
    637,203.48/879,333.84 = 350,717.40/x
  3. Step 3: Cross multiply
    637,203.48x = 879,333.84 × 350,717.40
  4. Step 4: Simplify right side
    637,203.48x = 308,397,678,096.82
  5. Step 5: Solve for x
    x = 308,397,678,096.82/637,203.48
  6. Step 6: Final answer
    x = 483,986.18

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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.