Home / 913,765.42-1,261,128.18-526,506.67

Finding the Fourth Proportional to 913,765.42, 1,261,128.18 and 526,506.67

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Solution

The fourth proportional to 913,765.42, 1,261,128.18 and 526,506.67 is: 726,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,765.42 : 1,261,128.18 = 526,506.67 : x
  2. Step 2: Convert to fraction form
    913,765.42/1,261,128.18 = 526,506.67/x
  3. Step 3: Cross multiply
    913,765.42x = 1,261,128.18 × 526,506.67
  4. Step 4: Simplify right side
    913,765.42x = 663,992,398,494.96
  5. Step 5: Solve for x
    x = 663,992,398,494.96/913,765.42
  6. Step 6: Final answer
    x = 726,655.20

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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.