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Finding the Fourth Proportional to 531,018.99, 732,804.02 and 289,300.82

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Solution

The fourth proportional to 531,018.99, 732,804.02 and 289,300.82 is: 399,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,018.99 : 732,804.02 = 289,300.82 : x
  2. Step 2: Convert to fraction form
    531,018.99/732,804.02 = 289,300.82/x
  3. Step 3: Cross multiply
    531,018.99x = 732,804.02 × 289,300.82
  4. Step 4: Simplify right side
    531,018.99x = 212,000,798,774.77
  5. Step 5: Solve for x
    x = 212,000,798,774.77/531,018.99
  6. Step 6: Final answer
    x = 399,233.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.