Home / 865,335.09-1,298,003.61-225,638.28

Finding the Fourth Proportional to 865,335.09, 1,298,003.61 and 225,638.28

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Solution

The fourth proportional to 865,335.09, 1,298,003.61 and 225,638.28 is: 338,457.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,335.09 : 1,298,003.61 = 225,638.28 : x
  2. Step 2: Convert to fraction form
    865,335.09/1,298,003.61 = 225,638.28/x
  3. Step 3: Cross multiply
    865,335.09x = 1,298,003.61 × 225,638.28
  4. Step 4: Simplify right side
    865,335.09x = 292,879,301,994.19
  5. Step 5: Solve for x
    x = 292,879,301,994.19/865,335.09
  6. Step 6: Final answer
    x = 338,457.67

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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.