Home / 1,038,106.10-1,556,967.15-289,997.30

Finding the Fourth Proportional to 1,038,106.10, 1,556,967.15 and 289,997.30

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Solution

The fourth proportional to 1,038,106.10, 1,556,967.15 and 289,997.30 is: 434,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,106.10 : 1,556,967.15 = 289,997.30 : x
  2. Step 2: Convert to fraction form
    1,038,106.10/1,556,967.15 = 289,997.30/x
  3. Step 3: Cross multiply
    1,038,106.10x = 1,556,967.15 × 289,997.30
  4. Step 4: Simplify right side
    1,038,106.10x = 451,516,269,688.70
  5. Step 5: Solve for x
    x = 451,516,269,688.70/1,038,106.10
  6. Step 6: Final answer
    x = 434,942.31

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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.