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Finding the Fourth Proportional to 536,130.08, 740,111.40 and 309,731.84

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Solution

The fourth proportional to 536,130.08, 740,111.40 and 309,731.84 is: 427,575.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,130.08 : 740,111.40 = 309,731.84 : x
  2. Step 2: Convert to fraction form
    536,130.08/740,111.40 = 309,731.84/x
  3. Step 3: Cross multiply
    536,130.08x = 740,111.40 × 309,731.84
  4. Step 4: Simplify right side
    536,130.08x = 229,236,065,726.98
  5. Step 5: Solve for x
    x = 229,236,065,726.98/536,130.08
  6. Step 6: Final answer
    x = 427,575.46

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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.