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Finding the Fourth Proportional to 569,347.36, 785,763.28 and 342,988

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Solution

The fourth proportional to 569,347.36, 785,763.28 and 342,988 is: 473,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,347.36 : 785,763.28 = 342,988 : x
  2. Step 2: Convert to fraction form
    569,347.36/785,763.28 = 342,988/x
  3. Step 3: Cross multiply
    569,347.36x = 785,763.28 × 342,988
  4. Step 4: Simplify right side
    569,347.36x = 269,507,375,880.64
  5. Step 5: Solve for x
    x = 269,507,375,880.64/569,347.36
  6. Step 6: Final answer
    x = 473,361.95

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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.