Home / 653,148.90-979,785.18-253,820.46

Finding the Fourth Proportional to 653,148.90, 979,785.18 and 253,820.46

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Solution

The fourth proportional to 653,148.90, 979,785.18 and 253,820.46 is: 380,754.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,148.90 : 979,785.18 = 253,820.46 : x
  2. Step 2: Convert to fraction form
    653,148.90/979,785.18 = 253,820.46/x
  3. Step 3: Cross multiply
    653,148.90x = 979,785.18 × 253,820.46
  4. Step 4: Simplify right side
    653,148.90x = 248,689,528,762.98
  5. Step 5: Solve for x
    x = 248,689,528,762.98/653,148.90
  6. Step 6: Final answer
    x = 380,754.73

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1.5x scale

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.