Home / 1,267,288.40-1,897,433.40-987,352.40

Finding the Fourth Proportional to 1,267,288.40, 1,897,433.40 and 987,352.40

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Solution

The fourth proportional to 1,267,288.40, 1,897,433.40 and 987,352.40 is: 1,478,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,288.40 : 1,897,433.40 = 987,352.40 : x
  2. Step 2: Convert to fraction form
    1,267,288.40/1,897,433.40 = 987,352.40/x
  3. Step 3: Cross multiply
    1,267,288.40x = 1,897,433.40 × 987,352.40
  4. Step 4: Simplify right side
    1,267,288.40x = 1,873,435,421,330.16
  5. Step 5: Solve for x
    x = 1,873,435,421,330.16/1,267,288.40
  6. Step 6: Final answer
    x = 1,478,302.35

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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.