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Finding the Fourth Proportional to 536,659.77, 740,574.83 and 307,209.45

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Solution

The fourth proportional to 536,659.77, 740,574.83 and 307,209.45 is: 423,940.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,659.77 : 740,574.83 = 307,209.45 : x
  2. Step 2: Convert to fraction form
    536,659.77/740,574.83 = 307,209.45/x
  3. Step 3: Cross multiply
    536,659.77x = 740,574.83 × 307,209.45
  4. Step 4: Simplify right side
    536,659.77x = 227,511,584,672.10
  5. Step 5: Solve for x
    x = 227,511,584,672.10/536,659.77
  6. Step 6: Final answer
    x = 423,940.08

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1.5x scale

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.