Home / 1,565,920.56-2,160,933.62-921,382.50

Finding the Fourth Proportional to 1,565,920.56, 2,160,933.62 and 921,382.50

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Solution

The fourth proportional to 1,565,920.56, 2,160,933.62 and 921,382.50 is: 1,271,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,920.56 : 2,160,933.62 = 921,382.50 : x
  2. Step 2: Convert to fraction form
    1,565,920.56/2,160,933.62 = 921,382.50/x
  3. Step 3: Cross multiply
    1,565,920.56x = 2,160,933.62 × 921,382.50
  4. Step 4: Simplify right side
    1,565,920.56x = 1,991,046,421,129.65
  5. Step 5: Solve for x
    x = 1,991,046,421,129.65/1,565,920.56
  6. Step 6: Final answer
    x = 1,271,486.22

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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.