Home / 676,632.80-1,015,208.40-666,005.60

Finding the Fourth Proportional to 676,632.80, 1,015,208.40 and 666,005.60

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Solution

The fourth proportional to 676,632.80, 1,015,208.40 and 666,005.60 is: 999,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,632.80 : 1,015,208.40 = 666,005.60 : x
  2. Step 2: Convert to fraction form
    676,632.80/1,015,208.40 = 666,005.60/x
  3. Step 3: Cross multiply
    676,632.80x = 1,015,208.40 × 666,005.60
  4. Step 4: Simplify right side
    676,632.80x = 676,134,479,567.04
  5. Step 5: Solve for x
    x = 676,134,479,567.04/676,632.80
  6. Step 6: Final answer
    x = 999,263.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.