Home / 854,126.45-1,178,648.24-472,128.63

Finding the Fourth Proportional to 854,126.45, 1,178,648.24 and 472,128.63

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Solution

The fourth proportional to 854,126.45, 1,178,648.24 and 472,128.63 is: 651,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,126.45 : 1,178,648.24 = 472,128.63 : x
  2. Step 2: Convert to fraction form
    854,126.45/1,178,648.24 = 472,128.63/x
  3. Step 3: Cross multiply
    854,126.45x = 1,178,648.24 × 472,128.63
  4. Step 4: Simplify right side
    854,126.45x = 556,473,578,803.11
  5. Step 5: Solve for x
    x = 556,473,578,803.11/854,126.45
  6. Step 6: Final answer
    x = 651,511.94

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Double scale
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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.