Home / 885,713.20-1,328,699.40-465,020.80

Finding the Fourth Proportional to 885,713.20, 1,328,699.40 and 465,020.80

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Solution

The fourth proportional to 885,713.20, 1,328,699.40 and 465,020.80 is: 697,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,713.20 : 1,328,699.40 = 465,020.80 : x
  2. Step 2: Convert to fraction form
    885,713.20/1,328,699.40 = 465,020.80/x
  3. Step 3: Cross multiply
    885,713.20x = 1,328,699.40 × 465,020.80
  4. Step 4: Simplify right side
    885,713.20x = 617,872,857,947.52
  5. Step 5: Solve for x
    x = 617,872,857,947.52/885,713.20
  6. Step 6: Final answer
    x = 697,599.24

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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.