Home / 555,619.27-766,758.28-300,970.46

Finding the Fourth Proportional to 555,619.27, 766,758.28 and 300,970.46

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Solution

The fourth proportional to 555,619.27, 766,758.28 and 300,970.46 is: 415,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,619.27 : 766,758.28 = 300,970.46 : x
  2. Step 2: Convert to fraction form
    555,619.27/766,758.28 = 300,970.46/x
  3. Step 3: Cross multiply
    555,619.27x = 766,758.28 × 300,970.46
  4. Step 4: Simplify right side
    555,619.27x = 230,771,592,240.41
  5. Step 5: Solve for x
    x = 230,771,592,240.41/555,619.27
  6. Step 6: Final answer
    x = 415,341.23

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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.