Home / 1,156,915.50-1,596,455.91-640,666.86

Finding the Fourth Proportional to 1,156,915.50, 1,596,455.91 and 640,666.86

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Solution

The fourth proportional to 1,156,915.50, 1,596,455.91 and 640,666.86 is: 884,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,915.50 : 1,596,455.91 = 640,666.86 : x
  2. Step 2: Convert to fraction form
    1,156,915.50/1,596,455.91 = 640,666.86/x
  3. Step 3: Cross multiply
    1,156,915.50x = 1,596,455.91 × 640,666.86
  4. Step 4: Simplify right side
    1,156,915.50x = 1,022,796,394,988.14
  5. Step 5: Solve for x
    x = 1,022,796,394,988.14/1,156,915.50
  6. Step 6: Final answer
    x = 884,071.82

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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.