Home / 926,814.80-1,390,999.80-453,904.40

Finding the Fourth Proportional to 926,814.80, 1,390,999.80 and 453,904.40

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Solution

The fourth proportional to 926,814.80, 1,390,999.80 and 453,904.40 is: 681,237.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,814.80 : 1,390,999.80 = 453,904.40 : x
  2. Step 2: Convert to fraction form
    926,814.80/1,390,999.80 = 453,904.40/x
  3. Step 3: Cross multiply
    926,814.80x = 1,390,999.80 × 453,904.40
  4. Step 4: Simplify right side
    926,814.80x = 631,380,929,619.12
  5. Step 5: Solve for x
    x = 631,380,929,619.12/926,814.80
  6. Step 6: Final answer
    x = 681,237.43

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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.