Home / 1,305,142.65-1,801,069.71-724,332.06

Finding the Fourth Proportional to 1,305,142.65, 1,801,069.71 and 724,332.06

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Solution

The fourth proportional to 1,305,142.65, 1,801,069.71 and 724,332.06 is: 999,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,142.65 : 1,801,069.71 = 724,332.06 : x
  2. Step 2: Convert to fraction form
    1,305,142.65/1,801,069.71 = 724,332.06/x
  3. Step 3: Cross multiply
    1,305,142.65x = 1,801,069.71 × 724,332.06
  4. Step 4: Simplify right side
    1,305,142.65x = 1,304,572,533,247.90
  5. Step 5: Solve for x
    x = 1,304,572,533,247.90/1,305,142.65
  6. Step 6: Final answer
    x = 999,563.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.