Home / 726,279.80-1,089,419.70-353,031.80

Finding the Fourth Proportional to 726,279.80, 1,089,419.70 and 353,031.80

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Solution

The fourth proportional to 726,279.80, 1,089,419.70 and 353,031.80 is: 529,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,279.80 : 1,089,419.70 = 353,031.80 : x
  2. Step 2: Convert to fraction form
    726,279.80/1,089,419.70 = 353,031.80/x
  3. Step 3: Cross multiply
    726,279.80x = 1,089,419.70 × 353,031.80
  4. Step 4: Simplify right side
    726,279.80x = 384,599,797,646.46
  5. Step 5: Solve for x
    x = 384,599,797,646.46/726,279.80
  6. Step 6: Final answer
    x = 529,547.70

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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.