Home / 1,565,698.86-2,160,627.84-921,160.62

Finding the Fourth Proportional to 1,565,698.86, 2,160,627.84 and 921,160.62

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Solution

The fourth proportional to 1,565,698.86, 2,160,627.84 and 921,160.62 is: 1,271,180.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,698.86 : 2,160,627.84 = 921,160.62 : x
  2. Step 2: Convert to fraction form
    1,565,698.86/2,160,627.84 = 921,160.62/x
  3. Step 3: Cross multiply
    1,565,698.86x = 2,160,627.84 × 921,160.62
  4. Step 4: Simplify right side
    1,565,698.86x = 1,990,285,280,683.66
  5. Step 5: Solve for x
    x = 1,990,285,280,683.66/1,565,698.86
  6. Step 6: Final answer
    x = 1,271,180.13

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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.