Home / 692,481.60-1,038,139.20-360,057.60

Finding the Fourth Proportional to 692,481.60, 1,038,139.20 and 360,057.60

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Solution

The fourth proportional to 692,481.60, 1,038,139.20 and 360,057.60 is: 539,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,481.60 : 1,038,139.20 = 360,057.60 : x
  2. Step 2: Convert to fraction form
    692,481.60/1,038,139.20 = 360,057.60/x
  3. Step 3: Cross multiply
    692,481.60x = 1,038,139.20 × 360,057.60
  4. Step 4: Simplify right side
    692,481.60x = 373,789,908,817.92
  5. Step 5: Solve for x
    x = 373,789,908,817.92/692,481.60
  6. Step 6: Final answer
    x = 539,783.16

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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.