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Finding the Fourth Proportional to 622,955.40, 859,686.42 and 368,304.36

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Solution

The fourth proportional to 622,955.40, 859,686.42 and 368,304.36 is: 508,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,955.40 : 859,686.42 = 368,304.36 : x
  2. Step 2: Convert to fraction form
    622,955.40/859,686.42 = 368,304.36/x
  3. Step 3: Cross multiply
    622,955.40x = 859,686.42 × 368,304.36
  4. Step 4: Simplify right side
    622,955.40x = 316,626,256,718.79
  5. Step 5: Solve for x
    x = 316,626,256,718.79/622,955.40
  6. Step 6: Final answer
    x = 508,264.73

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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.