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Finding the Fourth Proportional to 518,041.09, 714,947.88 and 303,168.34

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Solution

The fourth proportional to 518,041.09, 714,947.88 and 303,168.34 is: 418,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,041.09 : 714,947.88 = 303,168.34 : x
  2. Step 2: Convert to fraction form
    518,041.09/714,947.88 = 303,168.34/x
  3. Step 3: Cross multiply
    518,041.09x = 714,947.88 × 303,168.34
  4. Step 4: Simplify right side
    518,041.09x = 216,749,561,966.12
  5. Step 5: Solve for x
    x = 216,749,561,966.12/518,041.09
  6. Step 6: Final answer
    x = 418,402.26

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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.