Home / 1,462,246.20-2,190,416.85-830,421.90

Finding the Fourth Proportional to 1,462,246.20, 2,190,416.85 and 830,421.90

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Solution

The fourth proportional to 1,462,246.20, 2,190,416.85 and 830,421.90 is: 1,243,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462,246.20 : 2,190,416.85 = 830,421.90 : x
  2. Step 2: Convert to fraction form
    1,462,246.20/2,190,416.85 = 830,421.90/x
  3. Step 3: Cross multiply
    1,462,246.20x = 2,190,416.85 × 830,421.90
  4. Step 4: Simplify right side
    1,462,246.20x = 1,818,970,122,369.02
  5. Step 5: Solve for x
    x = 1,818,970,122,369.02/1,462,246.20
  6. Step 6: Final answer
    x = 1,243,956.13

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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.