Home / 781,714.54-1,077,291.75-626,489.51

Finding the Fourth Proportional to 781,714.54, 1,077,291.75 and 626,489.51

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Solution

The fourth proportional to 781,714.54, 1,077,291.75 and 626,489.51 is: 863,373.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,714.54 : 1,077,291.75 = 626,489.51 : x
  2. Step 2: Convert to fraction form
    781,714.54/1,077,291.75 = 626,489.51/x
  3. Step 3: Cross multiply
    781,714.54x = 1,077,291.75 × 626,489.51
  4. Step 4: Simplify right side
    781,714.54x = 674,911,980,584.54
  5. Step 5: Solve for x
    x = 674,911,980,584.54/781,714.54
  6. Step 6: Final answer
    x = 863,373.96

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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.