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Finding the Fourth Proportional to 518,277.16, 714,978.12 and 303,285.34

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Solution

The fourth proportional to 518,277.16, 714,978.12 and 303,285.34 is: 418,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,277.16 : 714,978.12 = 303,285.34 : x
  2. Step 2: Convert to fraction form
    518,277.16/714,978.12 = 303,285.34/x
  3. Step 3: Cross multiply
    518,277.16x = 714,978.12 × 303,285.34
  4. Step 4: Simplify right side
    518,277.16x = 216,842,382,216.76
  5. Step 5: Solve for x
    x = 216,842,382,216.76/518,277.16
  6. Step 6: Final answer
    x = 418,390.77

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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.