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Finding the Fourth Proportional to 630,415.24, 869,937.58 and 358,549.27

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Solution

The fourth proportional to 630,415.24, 869,937.58 and 358,549.27 is: 494,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,415.24 : 869,937.58 = 358,549.27 : x
  2. Step 2: Convert to fraction form
    630,415.24/869,937.58 = 358,549.27/x
  3. Step 3: Cross multiply
    630,415.24x = 869,937.58 × 358,549.27
  4. Step 4: Simplify right side
    630,415.24x = 311,915,482,461.82
  5. Step 5: Solve for x
    x = 311,915,482,461.82/630,415.24
  6. Step 6: Final answer
    x = 494,777.83

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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.