Home / 857,877.84-1,285,980.02-408,477.96

Finding the Fourth Proportional to 857,877.84, 1,285,980.02 and 408,477.96

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Solution

The fourth proportional to 857,877.84, 1,285,980.02 and 408,477.96 is: 612,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,877.84 : 1,285,980.02 = 408,477.96 : x
  2. Step 2: Convert to fraction form
    857,877.84/1,285,980.02 = 408,477.96/x
  3. Step 3: Cross multiply
    857,877.84x = 1,285,980.02 × 408,477.96
  4. Step 4: Simplify right side
    857,877.84x = 525,294,495,170.36
  5. Step 5: Solve for x
    x = 525,294,495,170.36/857,877.84
  6. Step 6: Final answer
    x = 612,318.53

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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.