Home / 1,020,140.37-1,530,296.22-310,174.56

Finding the Fourth Proportional to 1,020,140.37, 1,530,296.22 and 310,174.56

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Solution

The fourth proportional to 1,020,140.37, 1,530,296.22 and 310,174.56 is: 465,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,140.37 : 1,530,296.22 = 310,174.56 : x
  2. Step 2: Convert to fraction form
    1,020,140.37/1,530,296.22 = 310,174.56/x
  3. Step 3: Cross multiply
    1,020,140.37x = 1,530,296.22 × 310,174.56
  4. Step 4: Simplify right side
    1,020,140.37x = 474,658,956,708.16
  5. Step 5: Solve for x
    x = 474,658,956,708.16/1,020,140.37
  6. Step 6: Final answer
    x = 465,287.89

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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.