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Finding the Fourth Proportional to 993,460.80, 1,489,348.80 and 362,006.40

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Solution

The fourth proportional to 993,460.80, 1,489,348.80 and 362,006.40 is: 542,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,460.80 : 1,489,348.80 = 362,006.40 : x
  2. Step 2: Convert to fraction form
    993,460.80/1,489,348.80 = 362,006.40/x
  3. Step 3: Cross multiply
    993,460.80x = 1,489,348.80 × 362,006.40
  4. Step 4: Simplify right side
    993,460.80x = 539,153,797,432.32
  5. Step 5: Solve for x
    x = 539,153,797,432.32/993,460.80
  6. Step 6: Final answer
    x = 542,702.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.