Home / 1,383,970.85-2,076,018.74-424,356.36

Finding the Fourth Proportional to 1,383,970.85, 2,076,018.74 and 424,356.36

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Solution

The fourth proportional to 1,383,970.85, 2,076,018.74 and 424,356.36 is: 636,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,970.85 : 2,076,018.74 = 424,356.36 : x
  2. Step 2: Convert to fraction form
    1,383,970.85/2,076,018.74 = 424,356.36/x
  3. Step 3: Cross multiply
    1,383,970.85x = 2,076,018.74 × 424,356.36
  4. Step 4: Simplify right side
    1,383,970.85x = 880,971,755,798.19
  5. Step 5: Solve for x
    x = 880,971,755,798.19/1,383,970.85
  6. Step 6: Final answer
    x = 636,553.69

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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.