Home / 889,100.28-1,226,880.72-526,459.32

Finding the Fourth Proportional to 889,100.28, 1,226,880.72 and 526,459.32

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Solution

The fourth proportional to 889,100.28, 1,226,880.72 and 526,459.32 is: 726,467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,100.28 : 1,226,880.72 = 526,459.32 : x
  2. Step 2: Convert to fraction form
    889,100.28/1,226,880.72 = 526,459.32/x
  3. Step 3: Cross multiply
    889,100.28x = 1,226,880.72 × 526,459.32
  4. Step 4: Simplify right side
    889,100.28x = 645,902,789,572.31
  5. Step 5: Solve for x
    x = 645,902,789,572.31/889,100.28
  6. Step 6: Final answer
    x = 726,467.87

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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.