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Finding the Fourth Proportional to 485,813.37, 670,423.65 and 270,967.35

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Solution

The fourth proportional to 485,813.37, 670,423.65 and 270,967.35 is: 373,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,813.37 : 670,423.65 = 270,967.35 : x
  2. Step 2: Convert to fraction form
    485,813.37/670,423.65 = 270,967.35/x
  3. Step 3: Cross multiply
    485,813.37x = 670,423.65 × 270,967.35
  4. Step 4: Simplify right side
    485,813.37x = 181,662,919,817.83
  5. Step 5: Solve for x
    x = 181,662,919,817.83/485,813.37
  6. Step 6: Final answer
    x = 373,935.61

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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.