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Finding the Fourth Proportional to 633,483.74, 874,225.30 and 385,125.28

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Solution

The fourth proportional to 633,483.74, 874,225.30 and 385,125.28 is: 531,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,483.74 : 874,225.30 = 385,125.28 : x
  2. Step 2: Convert to fraction form
    633,483.74/874,225.30 = 385,125.28/x
  3. Step 3: Cross multiply
    633,483.74x = 874,225.30 × 385,125.28
  4. Step 4: Simplify right side
    633,483.74x = 336,686,263,445.58
  5. Step 5: Solve for x
    x = 336,686,263,445.58/633,483.74
  6. Step 6: Final answer
    x = 531,483.67

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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.