Home / 1,020,302.80-1,530,454.20-310,329.70

Finding the Fourth Proportional to 1,020,302.80, 1,530,454.20 and 310,329.70

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Solution

The fourth proportional to 1,020,302.80, 1,530,454.20 and 310,329.70 is: 465,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,302.80 : 1,530,454.20 = 310,329.70 : x
  2. Step 2: Convert to fraction form
    1,020,302.80/1,530,454.20 = 310,329.70/x
  3. Step 3: Cross multiply
    1,020,302.80x = 1,530,454.20 × 310,329.70
  4. Step 4: Simplify right side
    1,020,302.80x = 474,945,392,749.74
  5. Step 5: Solve for x
    x = 474,945,392,749.74/1,020,302.80
  6. Step 6: Final answer
    x = 465,494.55

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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.