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Finding the Fourth Proportional to 630,582.30, 870,196.41 and 344,107.26

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Solution

The fourth proportional to 630,582.30, 870,196.41 and 344,107.26 is: 474,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,582.30 : 870,196.41 = 344,107.26 : x
  2. Step 2: Convert to fraction form
    630,582.30/870,196.41 = 344,107.26/x
  3. Step 3: Cross multiply
    630,582.30x = 870,196.41 × 344,107.26
  4. Step 4: Simplify right side
    630,582.30x = 299,440,902,306.94
  5. Step 5: Solve for x
    x = 299,440,902,306.94/630,582.30
  6. Step 6: Final answer
    x = 474,864.11

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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.