Home / 1,630,355.25-2,249,960.51-905,203.07

Finding the Fourth Proportional to 1,630,355.25, 2,249,960.51 and 905,203.07

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Solution

The fourth proportional to 1,630,355.25, 2,249,960.51 and 905,203.07 is: 1,249,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,355.25 : 2,249,960.51 = 905,203.07 : x
  2. Step 2: Convert to fraction form
    1,630,355.25/2,249,960.51 = 905,203.07/x
  3. Step 3: Cross multiply
    1,630,355.25x = 2,249,960.51 × 905,203.07
  4. Step 4: Simplify right side
    1,630,355.25x = 2,036,671,152,043.97
  5. Step 5: Solve for x
    x = 2,036,671,152,043.97/1,630,355.25
  6. Step 6: Final answer
    x = 1,249,219.24

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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.