Home / 856,813.52-1,182,395.33-469,650.45

Finding the Fourth Proportional to 856,813.52, 1,182,395.33 and 469,650.45

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Solution

The fourth proportional to 856,813.52, 1,182,395.33 and 469,650.45 is: 648,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,813.52 : 1,182,395.33 = 469,650.45 : x
  2. Step 2: Convert to fraction form
    856,813.52/1,182,395.33 = 469,650.45/x
  3. Step 3: Cross multiply
    856,813.52x = 1,182,395.33 × 469,650.45
  4. Step 4: Simplify right side
    856,813.52x = 555,312,498,812.40
  5. Step 5: Solve for x
    x = 555,312,498,812.40/856,813.52
  6. Step 6: Final answer
    x = 648,113.60

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Double scale
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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.