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Finding the Fourth Proportional to 637,204.48, 879,335.22 and 350,718.40

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Solution

The fourth proportional to 637,204.48, 879,335.22 and 350,718.40 is: 483,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,204.48 : 879,335.22 = 350,718.40 : x
  2. Step 2: Convert to fraction form
    637,204.48/879,335.22 = 350,718.40/x
  3. Step 3: Cross multiply
    637,204.48x = 879,335.22 × 350,718.40
  4. Step 4: Simplify right side
    637,204.48x = 308,399,041,422.05
  5. Step 5: Solve for x
    x = 308,399,041,422.05/637,204.48
  6. Step 6: Final answer
    x = 483,987.56

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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.