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Finding the Fourth Proportional to 456,117.80, 684,176.70 and 437,455.40

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Solution

The fourth proportional to 456,117.80, 684,176.70 and 437,455.40 is: 656,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,117.80 : 684,176.70 = 437,455.40 : x
  2. Step 2: Convert to fraction form
    456,117.80/684,176.70 = 437,455.40/x
  3. Step 3: Cross multiply
    456,117.80x = 684,176.70 × 437,455.40
  4. Step 4: Simplify right side
    456,117.80x = 299,296,791,969.18
  5. Step 5: Solve for x
    x = 299,296,791,969.18/456,117.80
  6. Step 6: Final answer
    x = 656,183.10

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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.