Home / 1,383,968.40-2,076,827.40-815,348.40

Finding the Fourth Proportional to 1,383,968.40, 2,076,827.40 and 815,348.40

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Solution

The fourth proportional to 1,383,968.40, 2,076,827.40 and 815,348.40 is: 1,223,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,968.40 : 2,076,827.40 = 815,348.40 : x
  2. Step 2: Convert to fraction form
    1,383,968.40/2,076,827.40 = 815,348.40/x
  3. Step 3: Cross multiply
    1,383,968.40x = 2,076,827.40 × 815,348.40
  4. Step 4: Simplify right side
    1,383,968.40x = 1,693,337,897,666.16
  5. Step 5: Solve for x
    x = 1,693,337,897,666.16/1,383,968.40
  6. Step 6: Final answer
    x = 1,223,537.98

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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.