Home / 869,243.20-1,302,309.60-536,430.40

Finding the Fourth Proportional to 869,243.20, 1,302,309.60 and 536,430.40

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Solution

The fourth proportional to 869,243.20, 1,302,309.60 and 536,430.40 is: 803,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,243.20 : 1,302,309.60 = 536,430.40 : x
  2. Step 2: Convert to fraction form
    869,243.20/1,302,309.60 = 536,430.40/x
  3. Step 3: Cross multiply
    869,243.20x = 1,302,309.60 × 536,430.40
  4. Step 4: Simplify right side
    869,243.20x = 698,598,459,651.84
  5. Step 5: Solve for x
    x = 698,598,459,651.84/869,243.20
  6. Step 6: Final answer
    x = 803,685.85

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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.