Home / 1,288,556.79-1,779,007.50-830,460.48

Finding the Fourth Proportional to 1,288,556.79, 1,779,007.50 and 830,460.48

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Solution

The fourth proportional to 1,288,556.79, 1,779,007.50 and 830,460.48 is: 1,146,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,556.79 : 1,779,007.50 = 830,460.48 : x
  2. Step 2: Convert to fraction form
    1,288,556.79/1,779,007.50 = 830,460.48/x
  3. Step 3: Cross multiply
    1,288,556.79x = 1,779,007.50 × 830,460.48
  4. Step 4: Simplify right side
    1,288,556.79x = 1,477,395,422,373.60
  5. Step 5: Solve for x
    x = 1,477,395,422,373.60/1,288,556.79
  6. Step 6: Final answer
    x = 1,146,550.49

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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.