Home / 854,140.48-1,178,667.60-472,142.64

Finding the Fourth Proportional to 854,140.48, 1,178,667.60 and 472,142.64

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Solution

The fourth proportional to 854,140.48, 1,178,667.60 and 472,142.64 is: 651,531.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,140.48 : 1,178,667.60 = 472,142.64 : x
  2. Step 2: Convert to fraction form
    854,140.48/1,178,667.60 = 472,142.64/x
  3. Step 3: Cross multiply
    854,140.48x = 1,178,667.60 × 472,142.64
  4. Step 4: Simplify right side
    854,140.48x = 556,499,232,346.46
  5. Step 5: Solve for x
    x = 556,499,232,346.46/854,140.48
  6. Step 6: Final answer
    x = 651,531.27

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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.