Home / 876,664.40-1,314,996.60-315,496.40

Finding the Fourth Proportional to 876,664.40, 1,314,996.60 and 315,496.40

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Solution

The fourth proportional to 876,664.40, 1,314,996.60 and 315,496.40 is: 473,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,664.40 : 1,314,996.60 = 315,496.40 : x
  2. Step 2: Convert to fraction form
    876,664.40/1,314,996.60 = 315,496.40/x
  3. Step 3: Cross multiply
    876,664.40x = 1,314,996.60 × 315,496.40
  4. Step 4: Simplify right side
    876,664.40x = 414,876,693,312.24
  5. Step 5: Solve for x
    x = 414,876,693,312.24/876,664.40
  6. Step 6: Final answer
    x = 473,244.60

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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.