Home / 856,812.52-1,182,393.95-469,649.45

Finding the Fourth Proportional to 856,812.52, 1,182,393.95 and 469,649.45

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Solution

The fourth proportional to 856,812.52, 1,182,393.95 and 469,649.45 is: 648,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,812.52 : 1,182,393.95 = 469,649.45 : x
  2. Step 2: Convert to fraction form
    856,812.52/1,182,393.95 = 469,649.45/x
  3. Step 3: Cross multiply
    856,812.52x = 1,182,393.95 × 469,649.45
  4. Step 4: Simplify right side
    856,812.52x = 555,310,667,655.72
  5. Step 5: Solve for x
    x = 555,310,667,655.72/856,812.52
  6. Step 6: Final answer
    x = 648,112.22

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1.5x scale

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.