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Finding the Fourth Proportional to 572,875, 859,017.12 and 393,234.88

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Solution

The fourth proportional to 572,875, 859,017.12 and 393,234.88 is: 589,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,875 : 859,017.12 = 393,234.88 : x
  2. Step 2: Convert to fraction form
    572,875/859,017.12 = 393,234.88/x
  3. Step 3: Cross multiply
    572,875x = 859,017.12 × 393,234.88
  4. Step 4: Simplify right side
    572,875x = 337,795,494,101.15
  5. Step 5: Solve for x
    x = 337,795,494,101.15/572,875
  6. Step 6: Final answer
    x = 589,649.56

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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.