Home / 1,038,307.80-1,554,837.30-681,389.40

Finding the Fourth Proportional to 1,038,307.80, 1,554,837.30 and 681,389.40

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Solution

The fourth proportional to 1,038,307.80, 1,554,837.30 and 681,389.40 is: 1,020,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,307.80 : 1,554,837.30 = 681,389.40 : x
  2. Step 2: Convert to fraction form
    1,038,307.80/1,554,837.30 = 681,389.40/x
  3. Step 3: Cross multiply
    1,038,307.80x = 1,554,837.30 × 681,389.40
  4. Step 4: Simplify right side
    1,038,307.80x = 1,059,449,654,944.62
  5. Step 5: Solve for x
    x = 1,059,449,654,944.62/1,038,307.80
  6. Step 6: Final answer
    x = 1,020,361.84

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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.