Home / 555,051.30-831,702.15-465,821.70

Finding the Fourth Proportional to 555,051.30, 831,702.15 and 465,821.70

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Solution

The fourth proportional to 555,051.30, 831,702.15 and 465,821.70 is: 697,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,051.30 : 831,702.15 = 465,821.70 : x
  2. Step 2: Convert to fraction form
    555,051.30/831,702.15 = 465,821.70/x
  3. Step 3: Cross multiply
    555,051.30x = 831,702.15 × 465,821.70
  4. Step 4: Simplify right side
    555,051.30x = 387,424,909,406.66
  5. Step 5: Solve for x
    x = 387,424,909,406.66/555,051.30
  6. Step 6: Final answer
    x = 697,998.38

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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.