Home / 779,978.74-1,170,039.51-219,009.46

Finding the Fourth Proportional to 779,978.74, 1,170,039.51 and 219,009.46

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Solution

The fourth proportional to 779,978.74, 1,170,039.51 and 219,009.46 is: 328,534.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,978.74 : 1,170,039.51 = 219,009.46 : x
  2. Step 2: Convert to fraction form
    779,978.74/1,170,039.51 = 219,009.46/x
  3. Step 3: Cross multiply
    779,978.74x = 1,170,039.51 × 219,009.46
  4. Step 4: Simplify right side
    779,978.74x = 256,249,721,263.77
  5. Step 5: Solve for x
    x = 256,249,721,263.77/779,978.74
  6. Step 6: Final answer
    x = 328,534.24

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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.