Home / 1,238,973.80-1,858,460.70-490,922.60

Finding the Fourth Proportional to 1,238,973.80, 1,858,460.70 and 490,922.60

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Solution

The fourth proportional to 1,238,973.80, 1,858,460.70 and 490,922.60 is: 736,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,973.80 : 1,858,460.70 = 490,922.60 : x
  2. Step 2: Convert to fraction form
    1,238,973.80/1,858,460.70 = 490,922.60/x
  3. Step 3: Cross multiply
    1,238,973.80x = 1,858,460.70 × 490,922.60
  4. Step 4: Simplify right side
    1,238,973.80x = 912,360,358,841.82
  5. Step 5: Solve for x
    x = 912,360,358,841.82/1,238,973.80
  6. Step 6: Final answer
    x = 736,383.90

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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.