Home / 759,543.70-1,048,149.56-420,000.34

Finding the Fourth Proportional to 759,543.70, 1,048,149.56 and 420,000.34

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Solution

The fourth proportional to 759,543.70, 1,048,149.56 and 420,000.34 is: 579,589.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,543.70 : 1,048,149.56 = 420,000.34 : x
  2. Step 2: Convert to fraction form
    759,543.70/1,048,149.56 = 420,000.34/x
  3. Step 3: Cross multiply
    759,543.70x = 1,048,149.56 × 420,000.34
  4. Step 4: Simplify right side
    759,543.70x = 440,223,171,570.85
  5. Step 5: Solve for x
    x = 440,223,171,570.85/759,543.70
  6. Step 6: Final answer
    x = 579,589.00

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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.