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Finding the Fourth Proportional to 675,237.36, 931,724.02 and 388,702.06

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Solution

The fourth proportional to 675,237.36, 931,724.02 and 388,702.06 is: 536,349.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,237.36 : 931,724.02 = 388,702.06 : x
  2. Step 2: Convert to fraction form
    675,237.36/931,724.02 = 388,702.06/x
  3. Step 3: Cross multiply
    675,237.36x = 931,724.02 × 388,702.06
  4. Step 4: Simplify right side
    675,237.36x = 362,163,045,925.48
  5. Step 5: Solve for x
    x = 362,163,045,925.48/675,237.36
  6. Step 6: Final answer
    x = 536,349.24

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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.