Home / 879,674.88-1,213,976.93-497,693.46

Finding the Fourth Proportional to 879,674.88, 1,213,976.93 and 497,693.46

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Solution

The fourth proportional to 879,674.88, 1,213,976.93 and 497,693.46 is: 686,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,674.88 : 1,213,976.93 = 497,693.46 : x
  2. Step 2: Convert to fraction form
    879,674.88/1,213,976.93 = 497,693.46/x
  3. Step 3: Cross multiply
    879,674.88x = 1,213,976.93 × 497,693.46
  4. Step 4: Simplify right side
    879,674.88x = 604,188,376,163.41
  5. Step 5: Solve for x
    x = 604,188,376,163.41/879,674.88
  6. Step 6: Final answer
    x = 686,831.45

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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.