Home / 745,637.12-1,029,080.80-439,799.84

Finding the Fourth Proportional to 745,637.12, 1,029,080.80 and 439,799.84

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Solution

The fourth proportional to 745,637.12, 1,029,080.80 and 439,799.84 is: 606,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,637.12 : 1,029,080.80 = 439,799.84 : x
  2. Step 2: Convert to fraction form
    745,637.12/1,029,080.80 = 439,799.84/x
  3. Step 3: Cross multiply
    745,637.12x = 1,029,080.80 × 439,799.84
  4. Step 4: Simplify right side
    745,637.12x = 452,589,571,187.07
  5. Step 5: Solve for x
    x = 452,589,571,187.07/745,637.12
  6. Step 6: Final answer
    x = 606,983.69

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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.