Home / 1,430,379.41-1,975,672.01-1,069,407.77

Finding the Fourth Proportional to 1,430,379.41, 1,975,672.01 and 1,069,407.77

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Solution

The fourth proportional to 1,430,379.41, 1,975,672.01 and 1,069,407.77 is: 1,477,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,379.41 : 1,975,672.01 = 1,069,407.77 : x
  2. Step 2: Convert to fraction form
    1,430,379.41/1,975,672.01 = 1,069,407.77/x
  3. Step 3: Cross multiply
    1,430,379.41x = 1,975,672.01 × 1,069,407.77
  4. Step 4: Simplify right side
    1,430,379.41x = 2,112,798,991,260.68
  5. Step 5: Solve for x
    x = 2,112,798,991,260.68/1,430,379.41
  6. Step 6: Final answer
    x = 1,477,089.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.