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Finding the Fourth Proportional to 693,238.13, 956,504.63 and 402,677.09

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Solution

The fourth proportional to 693,238.13, 956,504.63 and 402,677.09 is: 555,599.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,238.13 : 956,504.63 = 402,677.09 : x
  2. Step 2: Convert to fraction form
    693,238.13/956,504.63 = 402,677.09/x
  3. Step 3: Cross multiply
    693,238.13x = 956,504.63 × 402,677.09
  4. Step 4: Simplify right side
    693,238.13x = 385,162,497,204.10
  5. Step 5: Solve for x
    x = 385,162,497,204.10/693,238.13
  6. Step 6: Final answer
    x = 555,599.13

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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.