Home / 1,020,136.28-1,530,290.07-310,170.47

Finding the Fourth Proportional to 1,020,136.28, 1,530,290.07 and 310,170.47

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Solution

The fourth proportional to 1,020,136.28, 1,530,290.07 and 310,170.47 is: 465,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,136.28 : 1,530,290.07 = 310,170.47 : x
  2. Step 2: Convert to fraction form
    1,020,136.28/1,530,290.07 = 310,170.47/x
  3. Step 3: Cross multiply
    1,020,136.28x = 1,530,290.07 × 310,170.47
  4. Step 4: Simplify right side
    1,020,136.28x = 474,650,782,596.78
  5. Step 5: Solve for x
    x = 474,650,782,596.78/1,020,136.28
  6. Step 6: Final answer
    x = 465,281.74

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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.