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Finding the Fourth Proportional to 480,663.88, 663,320.34 and 265,818.40

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Solution

The fourth proportional to 480,663.88, 663,320.34 and 265,818.40 is: 366,831.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,663.88 : 663,320.34 = 265,818.40 : x
  2. Step 2: Convert to fraction form
    480,663.88/663,320.34 = 265,818.40/x
  3. Step 3: Cross multiply
    480,663.88x = 663,320.34 × 265,818.40
  4. Step 4: Simplify right side
    480,663.88x = 176,322,751,466.26
  5. Step 5: Solve for x
    x = 176,322,751,466.26/480,663.88
  6. Step 6: Final answer
    x = 366,831.71

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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.