Home / 1,019,987.60-1,529,981.40-355,139.60

Finding the Fourth Proportional to 1,019,987.60, 1,529,981.40 and 355,139.60

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Solution

The fourth proportional to 1,019,987.60, 1,529,981.40 and 355,139.60 is: 532,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,987.60 : 1,529,981.40 = 355,139.60 : x
  2. Step 2: Convert to fraction form
    1,019,987.60/1,529,981.40 = 355,139.60/x
  3. Step 3: Cross multiply
    1,019,987.60x = 1,529,981.40 × 355,139.60
  4. Step 4: Simplify right side
    1,019,987.60x = 543,356,982,403.44
  5. Step 5: Solve for x
    x = 543,356,982,403.44/1,019,987.60
  6. Step 6: Final answer
    x = 532,709.40

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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.