Home / 859,328.32-1,288,993.02-326,726.32

Finding the Fourth Proportional to 859,328.32, 1,288,993.02 and 326,726.32

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Solution

The fourth proportional to 859,328.32, 1,288,993.02 and 326,726.32 is: 490,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,328.32 : 1,288,993.02 = 326,726.32 : x
  2. Step 2: Convert to fraction form
    859,328.32/1,288,993.02 = 326,726.32/x
  3. Step 3: Cross multiply
    859,328.32x = 1,288,993.02 × 326,726.32
  4. Step 4: Simplify right side
    859,328.32x = 421,147,945,930.29
  5. Step 5: Solve for x
    x = 421,147,945,930.29/859,328.32
  6. Step 6: Final answer
    x = 490,089.69

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1.5x scale

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.