Home / 766,207.12-1,057,273.23-439,503.21

Finding the Fourth Proportional to 766,207.12, 1,057,273.23 and 439,503.21

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Solution

The fourth proportional to 766,207.12, 1,057,273.23 and 439,503.21 is: 606,461.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,207.12 : 1,057,273.23 = 439,503.21 : x
  2. Step 2: Convert to fraction form
    766,207.12/1,057,273.23 = 439,503.21/x
  3. Step 3: Cross multiply
    766,207.12x = 1,057,273.23 × 439,503.21
  4. Step 4: Simplify right side
    766,207.12x = 464,674,978,432.07
  5. Step 5: Solve for x
    x = 464,674,978,432.07/766,207.12
  6. Step 6: Final answer
    x = 606,461.32

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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.