Home / 1,264,985.40-1,897,478.10-1,208,998.20

Finding the Fourth Proportional to 1,264,985.40, 1,897,478.10 and 1,208,998.20

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Solution

The fourth proportional to 1,264,985.40, 1,897,478.10 and 1,208,998.20 is: 1,813,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,985.40 : 1,897,478.10 = 1,208,998.20 : x
  2. Step 2: Convert to fraction form
    1,264,985.40/1,897,478.10 = 1,208,998.20/x
  3. Step 3: Cross multiply
    1,264,985.40x = 1,897,478.10 × 1,208,998.20
  4. Step 4: Simplify right side
    1,264,985.40x = 2,294,047,607,439.42
  5. Step 5: Solve for x
    x = 2,294,047,607,439.42/1,264,985.40
  6. Step 6: Final answer
    x = 1,813,497.30

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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.