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Finding the Fourth Proportional to 553,063.77, 830,090.16 and 283,375.89

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Solution

The fourth proportional to 553,063.77, 830,090.16 and 283,375.89 is: 425,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,063.77 : 830,090.16 = 283,375.89 : x
  2. Step 2: Convert to fraction form
    553,063.77/830,090.16 = 283,375.89/x
  3. Step 3: Cross multiply
    553,063.77x = 830,090.16 × 283,375.89
  4. Step 4: Simplify right side
    553,063.77x = 235,227,537,870.24
  5. Step 5: Solve for x
    x = 235,227,537,870.24/553,063.77
  6. Step 6: Final answer
    x = 425,317.21

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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.