Home / 1,288,010.40-1,932,975.45-490,848.90

Finding the Fourth Proportional to 1,288,010.40, 1,932,975.45 and 490,848.90

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Solution

The fourth proportional to 1,288,010.40, 1,932,975.45 and 490,848.90 is: 736,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,010.40 : 1,932,975.45 = 490,848.90 : x
  2. Step 2: Convert to fraction form
    1,288,010.40/1,932,975.45 = 490,848.90/x
  3. Step 3: Cross multiply
    1,288,010.40x = 1,932,975.45 × 490,848.90
  4. Step 4: Simplify right side
    1,288,010.40x = 948,798,873,359.51
  5. Step 5: Solve for x
    x = 948,798,873,359.51/1,288,010.40
  6. Step 6: Final answer
    x = 736,639.14

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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.