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Finding the Fourth Proportional to 555,157.06, 766,117.65 and 300,509.26

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Solution

The fourth proportional to 555,157.06, 766,117.65 and 300,509.26 is: 414,703.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,157.06 : 766,117.65 = 300,509.26 : x
  2. Step 2: Convert to fraction form
    555,157.06/766,117.65 = 300,509.26/x
  3. Step 3: Cross multiply
    555,157.06x = 766,117.65 × 300,509.26
  4. Step 4: Simplify right side
    555,157.06x = 230,225,448,074.44
  5. Step 5: Solve for x
    x = 230,225,448,074.44/555,157.06
  6. Step 6: Final answer
    x = 414,703.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.