Home / 461,311.34-636,501.18-280,018.76

Finding the Fourth Proportional to 461,311.34, 636,501.18 and 280,018.76

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Solution

The fourth proportional to 461,311.34, 636,501.18 and 280,018.76 is: 386,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,311.34 : 636,501.18 = 280,018.76 : x
  2. Step 2: Convert to fraction form
    461,311.34/636,501.18 = 280,018.76/x
  3. Step 3: Cross multiply
    461,311.34x = 636,501.18 × 280,018.76
  4. Step 4: Simplify right side
    461,311.34x = 178,232,271,162.14
  5. Step 5: Solve for x
    x = 178,232,271,162.14/461,311.34
  6. Step 6: Final answer
    x = 386,360.05

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1.5x scale

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.