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Finding the Fourth Proportional to 637,144.71, 879,259.83 and 346,757.40

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Solution

The fourth proportional to 637,144.71, 879,259.83 and 346,757.40 is: 478,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,144.71 : 879,259.83 = 346,757.40 : x
  2. Step 2: Convert to fraction form
    637,144.71/879,259.83 = 346,757.40/x
  3. Step 3: Cross multiply
    637,144.71x = 879,259.83 × 346,757.40
  4. Step 4: Simplify right side
    637,144.71x = 304,889,852,575.24
  5. Step 5: Solve for x
    x = 304,889,852,575.24/637,144.71
  6. Step 6: Final answer
    x = 478,525.28

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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.