Home / 1,020,301.80-1,530,452.70-310,328.70

Finding the Fourth Proportional to 1,020,301.80, 1,530,452.70 and 310,328.70

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Solution

The fourth proportional to 1,020,301.80, 1,530,452.70 and 310,328.70 is: 465,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,301.80 : 1,530,452.70 = 310,328.70 : x
  2. Step 2: Convert to fraction form
    1,020,301.80/1,530,452.70 = 310,328.70/x
  3. Step 3: Cross multiply
    1,020,301.80x = 1,530,452.70 × 310,328.70
  4. Step 4: Simplify right side
    1,020,301.80x = 474,943,396,802.49
  5. Step 5: Solve for x
    x = 474,943,396,802.49/1,020,301.80
  6. Step 6: Final answer
    x = 465,493.05

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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.