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Finding the Fourth Proportional to 566,787.40, 782,154.88 and 308,668.86

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Solution

The fourth proportional to 566,787.40, 782,154.88 and 308,668.86 is: 425,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,787.40 : 782,154.88 = 308,668.86 : x
  2. Step 2: Convert to fraction form
    566,787.40/782,154.88 = 308,668.86/x
  3. Step 3: Cross multiply
    566,787.40x = 782,154.88 × 308,668.86
  4. Step 4: Simplify right side
    566,787.40x = 241,426,855,153.04
  5. Step 5: Solve for x
    x = 241,426,855,153.04/566,787.40
  6. Step 6: Final answer
    x = 425,956.64

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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.