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Finding the Fourth Proportional to 518,014.40, 777,132.16 and 293,482.40

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Solution

The fourth proportional to 518,014.40, 777,132.16 and 293,482.40 is: 440,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,014.40 : 777,132.16 = 293,482.40 : x
  2. Step 2: Convert to fraction form
    518,014.40/777,132.16 = 293,482.40/x
  3. Step 3: Cross multiply
    518,014.40x = 777,132.16 × 293,482.40
  4. Step 4: Simplify right side
    518,014.40x = 228,074,611,433.98
  5. Step 5: Solve for x
    x = 228,074,611,433.98/518,014.40
  6. Step 6: Final answer
    x = 440,286.24

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1.5x scale

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.