Home / 1,142,688.23-1,576,899.66-626,432.72

Finding the Fourth Proportional to 1,142,688.23, 1,576,899.66 and 626,432.72

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Solution

The fourth proportional to 1,142,688.23, 1,576,899.66 and 626,432.72 is: 864,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,688.23 : 1,576,899.66 = 626,432.72 : x
  2. Step 2: Convert to fraction form
    1,142,688.23/1,576,899.66 = 626,432.72/x
  3. Step 3: Cross multiply
    1,142,688.23x = 1,576,899.66 × 626,432.72
  4. Step 4: Simplify right side
    1,142,688.23x = 987,821,537,645.50
  5. Step 5: Solve for x
    x = 987,821,537,645.50/1,142,688.23
  6. Step 6: Final answer
    x = 864,471.61

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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.