Home / 890,041.31-1,335,098.82-258,955.13

Finding the Fourth Proportional to 890,041.31, 1,335,098.82 and 258,955.13

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Solution

The fourth proportional to 890,041.31, 1,335,098.82 and 258,955.13 is: 388,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,041.31 : 1,335,098.82 = 258,955.13 : x
  2. Step 2: Convert to fraction form
    890,041.31/1,335,098.82 = 258,955.13/x
  3. Step 3: Cross multiply
    890,041.31x = 1,335,098.82 × 258,955.13
  4. Step 4: Simplify right side
    890,041.31x = 345,730,688,495.95
  5. Step 5: Solve for x
    x = 345,730,688,495.95/890,041.31
  6. Step 6: Final answer
    x = 388,443.42

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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.