Home / 779,819.52-1,076,090.88-440,321.28

Finding the Fourth Proportional to 779,819.52, 1,076,090.88 and 440,321.28

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Solution

The fourth proportional to 779,819.52, 1,076,090.88 and 440,321.28 is: 607,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,819.52 : 1,076,090.88 = 440,321.28 : x
  2. Step 2: Convert to fraction form
    779,819.52/1,076,090.88 = 440,321.28/x
  3. Step 3: Cross multiply
    779,819.52x = 1,076,090.88 × 440,321.28
  4. Step 4: Simplify right side
    779,819.52x = 473,825,713,677.93
  5. Step 5: Solve for x
    x = 473,825,713,677.93/779,819.52
  6. Step 6: Final answer
    x = 607,609.46

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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.