Home / 1,242,005.80-1,863,008.70-443,313.40

Finding the Fourth Proportional to 1,242,005.80, 1,863,008.70 and 443,313.40

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Solution

The fourth proportional to 1,242,005.80, 1,863,008.70 and 443,313.40 is: 664,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,005.80 : 1,863,008.70 = 443,313.40 : x
  2. Step 2: Convert to fraction form
    1,242,005.80/1,863,008.70 = 443,313.40/x
  3. Step 3: Cross multiply
    1,242,005.80x = 1,863,008.70 × 443,313.40
  4. Step 4: Simplify right side
    1,242,005.80x = 825,896,721,026.58
  5. Step 5: Solve for x
    x = 825,896,721,026.58/1,242,005.80
  6. Step 6: Final answer
    x = 664,970.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.