Home / 690,403.29-952,729.96-384,492.58

Finding the Fourth Proportional to 690,403.29, 952,729.96 and 384,492.58

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Solution

The fourth proportional to 690,403.29, 952,729.96 and 384,492.58 is: 530,584.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,403.29 : 952,729.96 = 384,492.58 : x
  2. Step 2: Convert to fraction form
    690,403.29/952,729.96 = 384,492.58/x
  3. Step 3: Cross multiply
    690,403.29x = 952,729.96 × 384,492.58
  4. Step 4: Simplify right side
    690,403.29x = 366,317,600,363.70
  5. Step 5: Solve for x
    x = 366,317,600,363.70/690,403.29
  6. Step 6: Final answer
    x = 530,584.96

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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.