Home / 1,085,412.90-1,628,197.08-286,686.48

Finding the Fourth Proportional to 1,085,412.90, 1,628,197.08 and 286,686.48

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Solution

The fourth proportional to 1,085,412.90, 1,628,197.08 and 286,686.48 is: 430,050.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,412.90 : 1,628,197.08 = 286,686.48 : x
  2. Step 2: Convert to fraction form
    1,085,412.90/1,628,197.08 = 286,686.48/x
  3. Step 3: Cross multiply
    1,085,412.90x = 1,628,197.08 × 286,686.48
  4. Step 4: Simplify right side
    1,085,412.90x = 466,782,089,611.48
  5. Step 5: Solve for x
    x = 466,782,089,611.48/1,085,412.90
  6. Step 6: Final answer
    x = 430,050.25

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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.