Home / 1,369,580.55-1,890,626.51-818,490.67

Finding the Fourth Proportional to 1,369,580.55, 1,890,626.51 and 818,490.67

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Solution

The fourth proportional to 1,369,580.55, 1,890,626.51 and 818,490.67 is: 1,129,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,580.55 : 1,890,626.51 = 818,490.67 : x
  2. Step 2: Convert to fraction form
    1,369,580.55/1,890,626.51 = 818,490.67/x
  3. Step 3: Cross multiply
    1,369,580.55x = 1,890,626.51 × 818,490.67
  4. Step 4: Simplify right side
    1,369,580.55x = 1,547,460,158,889.66
  5. Step 5: Solve for x
    x = 1,547,460,158,889.66/1,369,580.55
  6. Step 6: Final answer
    x = 1,129,878.90

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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.