Home / 700,302.20-1,048,034.10-420,020.60

Finding the Fourth Proportional to 700,302.20, 1,048,034.10 and 420,020.60

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Solution

The fourth proportional to 700,302.20, 1,048,034.10 and 420,020.60 is: 628,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,302.20 : 1,048,034.10 = 420,020.60 : x
  2. Step 2: Convert to fraction form
    700,302.20/1,048,034.10 = 420,020.60/x
  3. Step 3: Cross multiply
    700,302.20x = 1,048,034.10 × 420,020.60
  4. Step 4: Simplify right side
    700,302.20x = 440,195,911,502.46
  5. Step 5: Solve for x
    x = 440,195,911,502.46/700,302.20
  6. Step 6: Final answer
    x = 628,579.94

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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.