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Finding the Fourth Proportional to 459,463.77, 634,116.53 and 278,238.72

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Solution

The fourth proportional to 459,463.77, 634,116.53 and 278,238.72 is: 384,003.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,463.77 : 634,116.53 = 278,238.72 : x
  2. Step 2: Convert to fraction form
    459,463.77/634,116.53 = 278,238.72/x
  3. Step 3: Cross multiply
    459,463.77x = 634,116.53 × 278,238.72
  4. Step 4: Simplify right side
    459,463.77x = 176,435,771,638.04
  5. Step 5: Solve for x
    x = 176,435,771,638.04/459,463.77
  6. Step 6: Final answer
    x = 384,003.67

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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.