Home / 874,881.60-1,312,322.40-283,905.60

Finding the Fourth Proportional to 874,881.60, 1,312,322.40 and 283,905.60

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Solution

The fourth proportional to 874,881.60, 1,312,322.40 and 283,905.60 is: 425,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,881.60 : 1,312,322.40 = 283,905.60 : x
  2. Step 2: Convert to fraction form
    874,881.60/1,312,322.40 = 283,905.60/x
  3. Step 3: Cross multiply
    874,881.60x = 1,312,322.40 × 283,905.60
  4. Step 4: Simplify right side
    874,881.60x = 372,575,678,365.44
  5. Step 5: Solve for x
    x = 372,575,678,365.44/874,881.60
  6. Step 6: Final answer
    x = 425,858.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.