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Finding the Fourth Proportional to 630,147.84, 869,303.88 and 426,270.12

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Solution

The fourth proportional to 630,147.84, 869,303.88 and 426,270.12 is: 588,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,147.84 : 869,303.88 = 426,270.12 : x
  2. Step 2: Convert to fraction form
    630,147.84/869,303.88 = 426,270.12/x
  3. Step 3: Cross multiply
    630,147.84x = 869,303.88 × 426,270.12
  4. Step 4: Simplify right side
    630,147.84x = 370,558,269,244.07
  5. Step 5: Solve for x
    x = 370,558,269,244.07/630,147.84
  6. Step 6: Final answer
    x = 588,049.73

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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.