Home / 1,038,306.80-1,554,835.80-681,388.40

Finding the Fourth Proportional to 1,038,306.80, 1,554,835.80 and 681,388.40

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Solution

The fourth proportional to 1,038,306.80, 1,554,835.80 and 681,388.40 is: 1,020,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,306.80 : 1,554,835.80 = 681,388.40 : x
  2. Step 2: Convert to fraction form
    1,038,306.80/1,554,835.80 = 681,388.40/x
  3. Step 3: Cross multiply
    1,038,306.80x = 1,554,835.80 × 681,388.40
  4. Step 4: Simplify right side
    1,038,306.80x = 1,059,447,078,024.72
  5. Step 5: Solve for x
    x = 1,059,447,078,024.72/1,038,306.80
  6. Step 6: Final answer
    x = 1,020,360.34

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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.