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Finding the Fourth Proportional to 518,267.16, 714,964.32 and 303,275.34

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Solution

The fourth proportional to 518,267.16, 714,964.32 and 303,275.34 is: 418,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,267.16 : 714,964.32 = 303,275.34 : x
  2. Step 2: Convert to fraction form
    518,267.16/714,964.32 = 303,275.34/x
  3. Step 3: Cross multiply
    518,267.16x = 714,964.32 × 303,275.34
  4. Step 4: Simplify right side
    518,267.16x = 216,831,047,235.87
  5. Step 5: Solve for x
    x = 216,831,047,235.87/518,267.16
  6. Step 6: Final answer
    x = 418,376.98

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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.