Home / 825,827.36-1,139,639.88-458,360.78

Finding the Fourth Proportional to 825,827.36, 1,139,639.88 and 458,360.78

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Solution

The fourth proportional to 825,827.36, 1,139,639.88 and 458,360.78 is: 632,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,827.36 : 1,139,639.88 = 458,360.78 : x
  2. Step 2: Convert to fraction form
    825,827.36/1,139,639.88 = 458,360.78/x
  3. Step 3: Cross multiply
    825,827.36x = 1,139,639.88 × 458,360.78
  4. Step 4: Simplify right side
    825,827.36x = 522,366,224,315.91
  5. Step 5: Solve for x
    x = 522,366,224,315.91/825,827.36
  6. Step 6: Final answer
    x = 632,536.84

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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.