Home / 761,208.86-1,050,532.26-421,708.70

Finding the Fourth Proportional to 761,208.86, 1,050,532.26 and 421,708.70

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Solution

The fourth proportional to 761,208.86, 1,050,532.26 and 421,708.70 is: 581,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,208.86 : 1,050,532.26 = 421,708.70 : x
  2. Step 2: Convert to fraction form
    761,208.86/1,050,532.26 = 421,708.70/x
  3. Step 3: Cross multiply
    761,208.86x = 1,050,532.26 × 421,708.70
  4. Step 4: Simplify right side
    761,208.86x = 443,018,593,672.66
  5. Step 5: Solve for x
    x = 443,018,593,672.66/761,208.86
  6. Step 6: Final answer
    x = 581,993.48

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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.