Home / 1,026,388.75-1,539,421.39-343,270.40

Finding the Fourth Proportional to 1,026,388.75, 1,539,421.39 and 343,270.40

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Solution

The fourth proportional to 1,026,388.75, 1,539,421.39 and 343,270.40 is: 514,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,388.75 : 1,539,421.39 = 343,270.40 : x
  2. Step 2: Convert to fraction form
    1,026,388.75/1,539,421.39 = 343,270.40/x
  3. Step 3: Cross multiply
    1,026,388.75x = 1,539,421.39 × 343,270.40
  4. Step 4: Simplify right side
    1,026,388.75x = 528,437,796,313.86
  5. Step 5: Solve for x
    x = 528,437,796,313.86/1,026,388.75
  6. Step 6: Final answer
    x = 514,851.51

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Double scale
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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.