Home / 859,328.07-1,288,992.65-326,726.07

Finding the Fourth Proportional to 859,328.07, 1,288,992.65 and 326,726.07

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Solution

The fourth proportional to 859,328.07, 1,288,992.65 and 326,726.07 is: 490,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,328.07 : 1,288,992.65 = 326,726.07 : x
  2. Step 2: Convert to fraction form
    859,328.07/1,288,992.65 = 326,726.07/x
  3. Step 3: Cross multiply
    859,328.07x = 1,288,992.65 × 326,726.07
  4. Step 4: Simplify right side
    859,328.07x = 421,147,501,159.76
  5. Step 5: Solve for x
    x = 421,147,501,159.76/859,328.07
  6. Step 6: Final answer
    x = 490,089.31

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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.