Home / 887,070.72-1,224,158.12-479,172.60

Finding the Fourth Proportional to 887,070.72, 1,224,158.12 and 479,172.60

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Solution

The fourth proportional to 887,070.72, 1,224,158.12 and 479,172.60 is: 661,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,070.72 : 1,224,158.12 = 479,172.60 : x
  2. Step 2: Convert to fraction form
    887,070.72/1,224,158.12 = 479,172.60/x
  3. Step 3: Cross multiply
    887,070.72x = 1,224,158.12 × 479,172.60
  4. Step 4: Simplify right side
    887,070.72x = 586,583,029,171.51
  5. Step 5: Solve for x
    x = 586,583,029,171.51/887,070.72
  6. Step 6: Final answer
    x = 661,258.47

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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.