Home / 1,190,542.32-1,642,966.08-646,688.72

Finding the Fourth Proportional to 1,190,542.32, 1,642,966.08 and 646,688.72

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Solution

The fourth proportional to 1,190,542.32, 1,642,966.08 and 646,688.72 is: 892,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,542.32 : 1,642,966.08 = 646,688.72 : x
  2. Step 2: Convert to fraction form
    1,190,542.32/1,642,966.08 = 646,688.72/x
  3. Step 3: Cross multiply
    1,190,542.32x = 1,642,966.08 × 646,688.72
  4. Step 4: Simplify right side
    1,190,542.32x = 1,062,487,631,278.62
  5. Step 5: Solve for x
    x = 1,062,487,631,278.62/1,190,542.32
  6. Step 6: Final answer
    x = 892,440.04

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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.