Home / 1,127,967.12-1,556,673.80-644,603.67

Finding the Fourth Proportional to 1,127,967.12, 1,556,673.80 and 644,603.67

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Solution

The fourth proportional to 1,127,967.12, 1,556,673.80 and 644,603.67 is: 889,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,967.12 : 1,556,673.80 = 644,603.67 : x
  2. Step 2: Convert to fraction form
    1,127,967.12/1,556,673.80 = 644,603.67/x
  3. Step 3: Cross multiply
    1,127,967.12x = 1,556,673.80 × 644,603.67
  4. Step 4: Simplify right side
    1,127,967.12x = 1,003,437,641,249.83
  5. Step 5: Solve for x
    x = 1,003,437,641,249.83/1,127,967.12
  6. Step 6: Final answer
    x = 889,598.31

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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.