Home / 1,679,348.12-2,317,500.57-915,401.67

Finding the Fourth Proportional to 1,679,348.12, 2,317,500.57 and 915,401.67

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Solution

The fourth proportional to 1,679,348.12, 2,317,500.57 and 915,401.67 is: 1,263,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,348.12 : 2,317,500.57 = 915,401.67 : x
  2. Step 2: Convert to fraction form
    1,679,348.12/2,317,500.57 = 915,401.67/x
  3. Step 3: Cross multiply
    1,679,348.12x = 2,317,500.57 × 915,401.67
  4. Step 4: Simplify right side
    1,679,348.12x = 2,121,443,892,003.95
  5. Step 5: Solve for x
    x = 2,121,443,892,003.95/1,679,348.12
  6. Step 6: Final answer
    x = 1,263,254.40

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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.