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Finding the Fourth Proportional to 385,299.32, 575,586.35 and 277,765.55

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Solution

The fourth proportional to 385,299.32, 575,586.35 and 277,765.55 is: 414,945.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,299.32 : 575,586.35 = 277,765.55 : x
  2. Step 2: Convert to fraction form
    385,299.32/575,586.35 = 277,765.55/x
  3. Step 3: Cross multiply
    385,299.32x = 575,586.35 × 277,765.55
  4. Step 4: Simplify right side
    385,299.32x = 159,878,058,013.55
  5. Step 5: Solve for x
    x = 159,878,058,013.55/385,299.32
  6. Step 6: Final answer
    x = 414,945.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.