Home / 1,221,315.03-1,685,382.18-705,051.45

Finding the Fourth Proportional to 1,221,315.03, 1,685,382.18 and 705,051.45

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Solution

The fourth proportional to 1,221,315.03, 1,685,382.18 and 705,051.45 is: 972,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,315.03 : 1,685,382.18 = 705,051.45 : x
  2. Step 2: Convert to fraction form
    1,221,315.03/1,685,382.18 = 705,051.45/x
  3. Step 3: Cross multiply
    1,221,315.03x = 1,685,382.18 × 705,051.45
  4. Step 4: Simplify right side
    1,221,315.03x = 1,188,281,149,813.16
  5. Step 5: Solve for x
    x = 1,188,281,149,813.16/1,221,315.03
  6. Step 6: Final answer
    x = 972,952.20

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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.