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Finding the Fourth Proportional to 633,459.23, 874,173.82 and 346,989.57

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Solution

The fourth proportional to 633,459.23, 874,173.82 and 346,989.57 is: 478,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,459.23 : 874,173.82 = 346,989.57 : x
  2. Step 2: Convert to fraction form
    633,459.23/874,173.82 = 346,989.57/x
  3. Step 3: Cross multiply
    633,459.23x = 874,173.82 × 346,989.57
  4. Step 4: Simplify right side
    633,459.23x = 303,329,199,329.27
  5. Step 5: Solve for x
    x = 303,329,199,329.27/633,459.23
  6. Step 6: Final answer
    x = 478,845.65

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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.