Home / 1,390,984.90-2,085,958.95-492,079.30

Finding the Fourth Proportional to 1,390,984.90, 2,085,958.95 and 492,079.30

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Solution

The fourth proportional to 1,390,984.90, 2,085,958.95 and 492,079.30 is: 737,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,984.90 : 2,085,958.95 = 492,079.30 : x
  2. Step 2: Convert to fraction form
    1,390,984.90/2,085,958.95 = 492,079.30/x
  3. Step 3: Cross multiply
    1,390,984.90x = 2,085,958.95 × 492,079.30
  4. Step 4: Simplify right side
    1,390,984.90x = 1,026,457,219,944.74
  5. Step 5: Solve for x
    x = 1,026,457,219,944.74/1,390,984.90
  6. Step 6: Final answer
    x = 737,935.56

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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.