Home / 688,605.13-1,032,967.23-189,969.13

Finding the Fourth Proportional to 688,605.13, 1,032,967.23 and 189,969.13

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Solution

The fourth proportional to 688,605.13, 1,032,967.23 and 189,969.13 is: 284,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,605.13 : 1,032,967.23 = 189,969.13 : x
  2. Step 2: Convert to fraction form
    688,605.13/1,032,967.23 = 189,969.13/x
  3. Step 3: Cross multiply
    688,605.13x = 1,032,967.23 × 189,969.13
  4. Step 4: Simplify right side
    688,605.13x = 196,231,886,001.61
  5. Step 5: Solve for x
    x = 196,231,886,001.61/688,605.13
  6. Step 6: Final answer
    x = 284,970.12

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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.