Home / 1,191,519.48-1,643,636.70-755,135.40

Finding the Fourth Proportional to 1,191,519.48, 1,643,636.70 and 755,135.40

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Solution

The fourth proportional to 1,191,519.48, 1,643,636.70 and 755,135.40 is: 1,041,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,519.48 : 1,643,636.70 = 755,135.40 : x
  2. Step 2: Convert to fraction form
    1,191,519.48/1,643,636.70 = 755,135.40/x
  3. Step 3: Cross multiply
    1,191,519.48x = 1,643,636.70 × 755,135.40
  4. Step 4: Simplify right side
    1,191,519.48x = 1,241,168,256,909.18
  5. Step 5: Solve for x
    x = 1,241,168,256,909.18/1,191,519.48
  6. Step 6: Final answer
    x = 1,041,668.46

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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.