Home / 440,701.23-607,943.88-287,828.91

Finding the Fourth Proportional to 440,701.23, 607,943.88 and 287,828.91

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Solution

The fourth proportional to 440,701.23, 607,943.88 and 287,828.91 is: 397,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,701.23 : 607,943.88 = 287,828.91 : x
  2. Step 2: Convert to fraction form
    440,701.23/607,943.88 = 287,828.91/x
  3. Step 3: Cross multiply
    440,701.23x = 607,943.88 × 287,828.91
  4. Step 4: Simplify right side
    440,701.23x = 174,983,824,321.57
  5. Step 5: Solve for x
    x = 174,983,824,321.57/440,701.23
  6. Step 6: Final answer
    x = 397,057.72

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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.