Home / 1,298,972.07-1,938,946.01-1,145,577.51

Finding the Fourth Proportional to 1,298,972.07, 1,938,946.01 and 1,145,577.51

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Solution

The fourth proportional to 1,298,972.07, 1,938,946.01 and 1,145,577.51 is: 1,709,977.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,972.07 : 1,938,946.01 = 1,145,577.51 : x
  2. Step 2: Convert to fraction form
    1,298,972.07/1,938,946.01 = 1,145,577.51/x
  3. Step 3: Cross multiply
    1,298,972.07x = 1,938,946.01 × 1,145,577.51
  4. Step 4: Simplify right side
    1,298,972.07x = 2,221,212,936,432.35
  5. Step 5: Solve for x
    x = 2,221,212,936,432.35/1,298,972.07
  6. Step 6: Final answer
    x = 1,709,977.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.