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Finding the Fourth Proportional to 999,508, 1,499,417.88 and 325,430.16

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Solution

The fourth proportional to 999,508, 1,499,417.88 and 325,430.16 is: 488,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,508 : 1,499,417.88 = 325,430.16 : x
  2. Step 2: Convert to fraction form
    999,508/1,499,417.88 = 325,430.16/x
  3. Step 3: Cross multiply
    999,508x = 1,499,417.88 × 325,430.16
  4. Step 4: Simplify right side
    999,508x = 487,955,800,595.26
  5. Step 5: Solve for x
    x = 487,955,800,595.26/999,508
  6. Step 6: Final answer
    x = 488,195.99

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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.