Home / 1,209,039.13-1,668,473.92-665,163.24

Finding the Fourth Proportional to 1,209,039.13, 1,668,473.92 and 665,163.24

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Solution

The fourth proportional to 1,209,039.13, 1,668,473.92 and 665,163.24 is: 917,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,039.13 : 1,668,473.92 = 665,163.24 : x
  2. Step 2: Convert to fraction form
    1,209,039.13/1,668,473.92 = 665,163.24/x
  3. Step 3: Cross multiply
    1,209,039.13x = 1,668,473.92 × 665,163.24
  4. Step 4: Simplify right side
    1,209,039.13x = 1,109,807,518,482.70
  5. Step 5: Solve for x
    x = 1,109,807,518,482.70/1,209,039.13
  6. Step 6: Final answer
    x = 917,925.23

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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.