Home / 480,811.61-666,554.27-455,215.51

Finding the Fourth Proportional to 480,811.61, 666,554.27 and 455,215.51

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Solution

The fourth proportional to 480,811.61, 666,554.27 and 455,215.51 is: 631,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,811.61 : 666,554.27 = 455,215.51 : x
  2. Step 2: Convert to fraction form
    480,811.61/666,554.27 = 455,215.51/x
  3. Step 3: Cross multiply
    480,811.61x = 666,554.27 × 455,215.51
  4. Step 4: Simplify right side
    480,811.61x = 303,425,840,517.84
  5. Step 5: Solve for x
    x = 303,425,840,517.84/480,811.61
  6. Step 6: Final answer
    x = 631,070.12

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.