Home / 1,153,130.94-1,728,712.26-815,108.22

Finding the Fourth Proportional to 1,153,130.94, 1,728,712.26 and 815,108.22

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Solution

The fourth proportional to 1,153,130.94, 1,728,712.26 and 815,108.22 is: 1,221,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,130.94 : 1,728,712.26 = 815,108.22 : x
  2. Step 2: Convert to fraction form
    1,153,130.94/1,728,712.26 = 815,108.22/x
  3. Step 3: Cross multiply
    1,153,130.94x = 1,728,712.26 × 815,108.22
  4. Step 4: Simplify right side
    1,153,130.94x = 1,409,087,573,140.78
  5. Step 5: Solve for x
    x = 1,409,087,573,140.78/1,153,130.94
  6. Step 6: Final answer
    x = 1,221,966.67

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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.