Home / 1,390,334.40-2,085,501.60-492,789.60

Finding the Fourth Proportional to 1,390,334.40, 2,085,501.60 and 492,789.60

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Solution

The fourth proportional to 1,390,334.40, 2,085,501.60 and 492,789.60 is: 739,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,334.40 : 2,085,501.60 = 492,789.60 : x
  2. Step 2: Convert to fraction form
    1,390,334.40/2,085,501.60 = 492,789.60/x
  3. Step 3: Cross multiply
    1,390,334.40x = 2,085,501.60 × 492,789.60
  4. Step 4: Simplify right side
    1,390,334.40x = 1,027,713,499,263.36
  5. Step 5: Solve for x
    x = 1,027,713,499,263.36/1,390,334.40
  6. Step 6: Final answer
    x = 739,184.40

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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.