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Finding the Fourth Proportional to 630,941.65, 870,658.93 and 344,461.12

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Solution

The fourth proportional to 630,941.65, 870,658.93 and 344,461.12 is: 475,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,941.65 : 870,658.93 = 344,461.12 : x
  2. Step 2: Convert to fraction form
    630,941.65/870,658.93 = 344,461.12/x
  3. Step 3: Cross multiply
    630,941.65x = 870,658.93 × 344,461.12
  4. Step 4: Simplify right side
    630,941.65x = 299,908,150,165.80
  5. Step 5: Solve for x
    x = 299,908,150,165.80/630,941.65
  6. Step 6: Final answer
    x = 475,334.21

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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.