Home / 869,243.70-1,302,310.35-536,430.90

Finding the Fourth Proportional to 869,243.70, 1,302,310.35 and 536,430.90

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Solution

The fourth proportional to 869,243.70, 1,302,310.35 and 536,430.90 is: 803,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,243.70 : 1,302,310.35 = 536,430.90 : x
  2. Step 2: Convert to fraction form
    869,243.70/1,302,310.35 = 536,430.90/x
  3. Step 3: Cross multiply
    869,243.70x = 1,302,310.35 × 536,430.90
  4. Step 4: Simplify right side
    869,243.70x = 698,599,513,129.82
  5. Step 5: Solve for x
    x = 698,599,513,129.82/869,243.70
  6. Step 6: Final answer
    x = 803,686.60

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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.