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Finding the Fourth Proportional to 408,064.40, 571,880.68 and 408,064.40

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Solution

The fourth proportional to 408,064.40, 571,880.68 and 408,064.40 is: 571,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,064.40 : 571,880.68 = 408,064.40 : x
  2. Step 2: Convert to fraction form
    408,064.40/571,880.68 = 408,064.40/x
  3. Step 3: Cross multiply
    408,064.40x = 571,880.68 × 408,064.40
  4. Step 4: Simplify right side
    408,064.40x = 233,364,146,555.79
  5. Step 5: Solve for x
    x = 233,364,146,555.79/408,064.40
  6. Step 6: Final answer
    x = 571,880.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.