Home / 734,465.40-1,101,698.10-398,542.20

Finding the Fourth Proportional to 734,465.40, 1,101,698.10 and 398,542.20

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Solution

The fourth proportional to 734,465.40, 1,101,698.10 and 398,542.20 is: 597,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,465.40 : 1,101,698.10 = 398,542.20 : x
  2. Step 2: Convert to fraction form
    734,465.40/1,101,698.10 = 398,542.20/x
  3. Step 3: Cross multiply
    734,465.40x = 1,101,698.10 × 398,542.20
  4. Step 4: Simplify right side
    734,465.40x = 439,073,184,509.82
  5. Step 5: Solve for x
    x = 439,073,184,509.82/734,465.40
  6. Step 6: Final answer
    x = 597,813.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.