Home / 891,622.50-1,230,438.93-509,657.49

Finding the Fourth Proportional to 891,622.50, 1,230,438.93 and 509,657.49

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Solution

The fourth proportional to 891,622.50, 1,230,438.93 and 509,657.49 is: 703,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,622.50 : 1,230,438.93 = 509,657.49 : x
  2. Step 2: Convert to fraction form
    891,622.50/1,230,438.93 = 509,657.49/x
  3. Step 3: Cross multiply
    891,622.50x = 1,230,438.93 × 509,657.49
  4. Step 4: Simplify right side
    891,622.50x = 627,102,416,662.09
  5. Step 5: Solve for x
    x = 627,102,416,662.09/891,622.50
  6. Step 6: Final answer
    x = 703,327.27

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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.