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Finding the Fourth Proportional to 565,400.20, 849,482.70 and 425,432.20

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Solution

The fourth proportional to 565,400.20, 849,482.70 and 425,432.20 is: 639,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,400.20 : 849,482.70 = 425,432.20 : x
  2. Step 2: Convert to fraction form
    565,400.20/849,482.70 = 425,432.20/x
  3. Step 3: Cross multiply
    565,400.20x = 849,482.70 × 425,432.20
  4. Step 4: Simplify right side
    565,400.20x = 361,397,293,922.94
  5. Step 5: Solve for x
    x = 361,397,293,922.94/565,400.20
  6. Step 6: Final answer
    x = 639,188.48

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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.