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Finding the Fourth Proportional to 554,054.85, 831,130.88 and 406,135.89

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Solution

The fourth proportional to 554,054.85, 831,130.88 and 406,135.89 is: 609,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,054.85 : 831,130.88 = 406,135.89 : x
  2. Step 2: Convert to fraction form
    554,054.85/831,130.88 = 406,135.89/x
  3. Step 3: Cross multiply
    554,054.85x = 831,130.88 × 406,135.89
  4. Step 4: Simplify right side
    554,054.85x = 337,552,077,624.60
  5. Step 5: Solve for x
    x = 337,552,077,624.60/554,054.85
  6. Step 6: Final answer
    x = 609,239.46

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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.