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Finding the Fourth Proportional to 633,363.70, 874,009.43 and 346,877.64

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Solution

The fourth proportional to 633,363.70, 874,009.43 and 346,877.64 is: 478,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,363.70 : 874,009.43 = 346,877.64 : x
  2. Step 2: Convert to fraction form
    633,363.70/874,009.43 = 346,877.64/x
  3. Step 3: Cross multiply
    633,363.70x = 874,009.43 × 346,877.64
  4. Step 4: Simplify right side
    633,363.70x = 303,174,328,416.15
  5. Step 5: Solve for x
    x = 303,174,328,416.15/633,363.70
  6. Step 6: Final answer
    x = 478,673.36

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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.