Home / 611,576.10-917,364.15-358,977.60

Finding the Fourth Proportional to 611,576.10, 917,364.15 and 358,977.60

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Solution

The fourth proportional to 611,576.10, 917,364.15 and 358,977.60 is: 538,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,576.10 : 917,364.15 = 358,977.60 : x
  2. Step 2: Convert to fraction form
    611,576.10/917,364.15 = 358,977.60/x
  3. Step 3: Cross multiply
    611,576.10x = 917,364.15 × 358,977.60
  4. Step 4: Simplify right side
    611,576.10x = 329,313,180,893.04
  5. Step 5: Solve for x
    x = 329,313,180,893.04/611,576.10
  6. Step 6: Final answer
    x = 538,466.40

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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.