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Finding the Fourth Proportional to 586,089.79, 808,814.30 and 331,440.98

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Solution

The fourth proportional to 586,089.79, 808,814.30 and 331,440.98 is: 457,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,089.79 : 808,814.30 = 331,440.98 : x
  2. Step 2: Convert to fraction form
    586,089.79/808,814.30 = 331,440.98/x
  3. Step 3: Cross multiply
    586,089.79x = 808,814.30 × 331,440.98
  4. Step 4: Simplify right side
    586,089.79x = 268,074,198,528.74
  5. Step 5: Solve for x
    x = 268,074,198,528.74/586,089.79
  6. Step 6: Final answer
    x = 457,394.42

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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.