Home / 735,621.10-1,015,237.47-449,140.30

Finding the Fourth Proportional to 735,621.10, 1,015,237.47 and 449,140.30

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Solution

The fourth proportional to 735,621.10, 1,015,237.47 and 449,140.30 is: 619,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,621.10 : 1,015,237.47 = 449,140.30 : x
  2. Step 2: Convert to fraction form
    735,621.10/1,015,237.47 = 449,140.30/x
  3. Step 3: Cross multiply
    735,621.10x = 1,015,237.47 × 449,140.30
  4. Step 4: Simplify right side
    735,621.10x = 455,984,061,847.04
  5. Step 5: Solve for x
    x = 455,984,061,847.04/735,621.10
  6. Step 6: Final answer
    x = 619,862.67

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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.