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Finding the Fourth Proportional to 448,951.70, 619,566.40 and 245,015.74

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Solution

The fourth proportional to 448,951.70, 619,566.40 and 245,015.74 is: 338,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,951.70 : 619,566.40 = 245,015.74 : x
  2. Step 2: Convert to fraction form
    448,951.70/619,566.40 = 245,015.74/x
  3. Step 3: Cross multiply
    448,951.70x = 619,566.40 × 245,015.74
  4. Step 4: Simplify right side
    448,951.70x = 151,803,516,877.30
  5. Step 5: Solve for x
    x = 151,803,516,877.30/448,951.70
  6. Step 6: Final answer
    x = 338,128.84

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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.