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Finding the Fourth Proportional to 555,051.80, 831,702.90 and 465,822.20

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Solution

The fourth proportional to 555,051.80, 831,702.90 and 465,822.20 is: 697,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,051.80 : 831,702.90 = 465,822.20 : x
  2. Step 2: Convert to fraction form
    555,051.80/831,702.90 = 465,822.20/x
  3. Step 3: Cross multiply
    555,051.80x = 831,702.90 × 465,822.20
  4. Step 4: Simplify right side
    555,051.80x = 387,425,674,624.38
  5. Step 5: Solve for x
    x = 387,425,674,624.38/555,051.80
  6. Step 6: Final answer
    x = 697,999.13

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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.