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Finding the Fourth Proportional to 440,714.55, 661,071.83 and 402,007.35

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Solution

The fourth proportional to 440,714.55, 661,071.83 and 402,007.35 is: 603,011.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,714.55 : 661,071.83 = 402,007.35 : x
  2. Step 2: Convert to fraction form
    440,714.55/661,071.83 = 402,007.35/x
  3. Step 3: Cross multiply
    440,714.55x = 661,071.83 × 402,007.35
  4. Step 4: Simplify right side
    440,714.55x = 265,755,732,527.91
  5. Step 5: Solve for x
    x = 265,755,732,527.91/440,714.55
  6. Step 6: Final answer
    x = 603,011.03

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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.