Home / 1,025,421.76-1,538,132.80-670,734.16

Finding the Fourth Proportional to 1,025,421.76, 1,538,132.80 and 670,734.16

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Solution

The fourth proportional to 1,025,421.76, 1,538,132.80 and 670,734.16 is: 1,006,101.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,421.76 : 1,538,132.80 = 670,734.16 : x
  2. Step 2: Convert to fraction form
    1,025,421.76/1,538,132.80 = 670,734.16/x
  3. Step 3: Cross multiply
    1,025,421.76x = 1,538,132.80 × 670,734.16
  4. Step 4: Simplify right side
    1,025,421.76x = 1,031,678,211,576.45
  5. Step 5: Solve for x
    x = 1,031,678,211,576.45/1,025,421.76
  6. Step 6: Final answer
    x = 1,006,101.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.