Home / 490,740.23-736,110.45-153,780.80

Finding the Fourth Proportional to 490,740.23, 736,110.45 and 153,780.80

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Solution

The fourth proportional to 490,740.23, 736,110.45 and 153,780.80 is: 230,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,740.23 : 736,110.45 = 153,780.80 : x
  2. Step 2: Convert to fraction form
    490,740.23/736,110.45 = 153,780.80/x
  3. Step 3: Cross multiply
    490,740.23x = 736,110.45 × 153,780.80
  4. Step 4: Simplify right side
    490,740.23x = 113,199,653,889.36
  5. Step 5: Solve for x
    x = 113,199,653,889.36/490,740.23
  6. Step 6: Final answer
    x = 230,671.23

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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.