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Finding the Fourth Proportional to 539,623.36, 744,642 and 297,867.12

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Solution

The fourth proportional to 539,623.36, 744,642 and 297,867.12 is: 411,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,623.36 : 744,642 = 297,867.12 : x
  2. Step 2: Convert to fraction form
    539,623.36/744,642 = 297,867.12/x
  3. Step 3: Cross multiply
    539,623.36x = 744,642 × 297,867.12
  4. Step 4: Simplify right side
    539,623.36x = 221,804,367,971.04
  5. Step 5: Solve for x
    x = 221,804,367,971.04/539,623.36
  6. Step 6: Final answer
    x = 411,035.52

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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.