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Finding the Fourth Proportional to 518,277.22, 714,978.10 and 303,284.18

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Solution

The fourth proportional to 518,277.22, 714,978.10 and 303,284.18 is: 418,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,277.22 : 714,978.10 = 303,284.18 : x
  2. Step 2: Convert to fraction form
    518,277.22/714,978.10 = 303,284.18/x
  3. Step 3: Cross multiply
    518,277.22x = 714,978.10 × 303,284.18
  4. Step 4: Simplify right side
    518,277.22x = 216,841,546,776.46
  5. Step 5: Solve for x
    x = 216,841,546,776.46/518,277.22
  6. Step 6: Final answer
    x = 418,389.11

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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.