Home / 980,874.40-1,470,218.10-381,636.40

Finding the Fourth Proportional to 980,874.40, 1,470,218.10 and 381,636.40

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Solution

The fourth proportional to 980,874.40, 1,470,218.10 and 381,636.40 is: 572,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,874.40 : 1,470,218.10 = 381,636.40 : x
  2. Step 2: Convert to fraction form
    980,874.40/1,470,218.10 = 381,636.40/x
  3. Step 3: Cross multiply
    980,874.40x = 1,470,218.10 × 381,636.40
  4. Step 4: Simplify right side
    980,874.40x = 561,088,742,898.84
  5. Step 5: Solve for x
    x = 561,088,742,898.84/980,874.40
  6. Step 6: Final answer
    x = 572,029.14

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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.