Home / 991,860.40-1,487,790.60-243,906.40

Finding the Fourth Proportional to 991,860.40, 1,487,790.60 and 243,906.40

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Solution

The fourth proportional to 991,860.40, 1,487,790.60 and 243,906.40 is: 365,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,860.40 : 1,487,790.60 = 243,906.40 : x
  2. Step 2: Convert to fraction form
    991,860.40/1,487,790.60 = 243,906.40/x
  3. Step 3: Cross multiply
    991,860.40x = 1,487,790.60 × 243,906.40
  4. Step 4: Simplify right side
    991,860.40x = 362,881,649,199.84
  5. Step 5: Solve for x
    x = 362,881,649,199.84/991,860.40
  6. Step 6: Final answer
    x = 365,859.60

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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.