Home / 1,630,356.25-2,249,961.89-905,204.07

Finding the Fourth Proportional to 1,630,356.25, 2,249,961.89 and 905,204.07

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Solution

The fourth proportional to 1,630,356.25, 2,249,961.89 and 905,204.07 is: 1,249,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,356.25 : 2,249,961.89 = 905,204.07 : x
  2. Step 2: Convert to fraction form
    1,630,356.25/2,249,961.89 = 905,204.07/x
  3. Step 3: Cross multiply
    1,630,356.25x = 2,249,961.89 × 905,204.07
  4. Step 4: Simplify right side
    1,630,356.25x = 2,036,674,660,172.89
  5. Step 5: Solve for x
    x = 2,036,674,660,172.89/1,630,356.25
  6. Step 6: Final answer
    x = 1,249,220.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.