Home / 859,510.51-1,185,865.84-515,220.82

Finding the Fourth Proportional to 859,510.51, 1,185,865.84 and 515,220.82

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Solution

The fourth proportional to 859,510.51, 1,185,865.84 and 515,220.82 is: 710,849.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,510.51 : 1,185,865.84 = 515,220.82 : x
  2. Step 2: Convert to fraction form
    859,510.51/1,185,865.84 = 515,220.82/x
  3. Step 3: Cross multiply
    859,510.51x = 1,185,865.84 × 515,220.82
  4. Step 4: Simplify right side
    859,510.51x = 610,982,773,055.60
  5. Step 5: Solve for x
    x = 610,982,773,055.60/859,510.51
  6. Step 6: Final answer
    x = 710,849.68

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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.