Home / 1,020,440.23-1,530,881.78-310,449.81

Finding the Fourth Proportional to 1,020,440.23, 1,530,881.78 and 310,449.81

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Solution

The fourth proportional to 1,020,440.23, 1,530,881.78 and 310,449.81 is: 465,742.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,440.23 : 1,530,881.78 = 310,449.81 : x
  2. Step 2: Convert to fraction form
    1,020,440.23/1,530,881.78 = 310,449.81/x
  3. Step 3: Cross multiply
    1,020,440.23x = 1,530,881.78 × 310,449.81
  4. Step 4: Simplify right side
    1,020,440.23x = 475,261,957,733.46
  5. Step 5: Solve for x
    x = 475,261,957,733.46/1,020,440.23
  6. Step 6: Final answer
    x = 465,742.08

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Double scale
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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.