Home / 1,291,045.32-1,932,828.27-972,538.59

Finding the Fourth Proportional to 1,291,045.32, 1,932,828.27 and 972,538.59

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Solution

The fourth proportional to 1,291,045.32, 1,932,828.27 and 972,538.59 is: 1,455,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,045.32 : 1,932,828.27 = 972,538.59 : x
  2. Step 2: Convert to fraction form
    1,291,045.32/1,932,828.27 = 972,538.59/x
  3. Step 3: Cross multiply
    1,291,045.32x = 1,932,828.27 × 972,538.59
  4. Step 4: Simplify right side
    1,291,045.32x = 1,879,750,080,417.94
  5. Step 5: Solve for x
    x = 1,879,750,080,417.94/1,291,045.32
  6. Step 6: Final answer
    x = 1,455,990.78

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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.