Home / 448,631.64-618,761.61-287,501.67

Finding the Fourth Proportional to 448,631.64, 618,761.61 and 287,501.67

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Solution

The fourth proportional to 448,631.64, 618,761.61 and 287,501.67 is: 396,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,631.64 : 618,761.61 = 287,501.67 : x
  2. Step 2: Convert to fraction form
    448,631.64/618,761.61 = 287,501.67/x
  3. Step 3: Cross multiply
    448,631.64x = 618,761.61 × 287,501.67
  4. Step 4: Simplify right side
    448,631.64x = 177,894,996,206.89
  5. Step 5: Solve for x
    x = 177,894,996,206.89/448,631.64
  6. Step 6: Final answer
    x = 396,527.98

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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.