Home / 1,500,975.47-2,071,321.43-812,641.82

Finding the Fourth Proportional to 1,500,975.47, 2,071,321.43 and 812,641.82

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Solution

The fourth proportional to 1,500,975.47, 2,071,321.43 and 812,641.82 is: 1,121,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,975.47 : 2,071,321.43 = 812,641.82 : x
  2. Step 2: Convert to fraction form
    1,500,975.47/2,071,321.43 = 812,641.82/x
  3. Step 3: Cross multiply
    1,500,975.47x = 2,071,321.43 × 812,641.82
  4. Step 4: Simplify right side
    1,500,975.47x = 1,683,242,417,795.30
  5. Step 5: Solve for x
    x = 1,683,242,417,795.30/1,500,975.47
  6. Step 6: Final answer
    x = 1,121,432.33

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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.