Home / 724,914.91-1,000,354.75-402,645.57

Finding the Fourth Proportional to 724,914.91, 1,000,354.75 and 402,645.57

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Solution

The fourth proportional to 724,914.91, 1,000,354.75 and 402,645.57 is: 555,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,914.91 : 1,000,354.75 = 402,645.57 : x
  2. Step 2: Convert to fraction form
    724,914.91/1,000,354.75 = 402,645.57/x
  3. Step 3: Cross multiply
    724,914.91x = 1,000,354.75 × 402,645.57
  4. Step 4: Simplify right side
    724,914.91x = 402,788,408,515.96
  5. Step 5: Solve for x
    x = 402,788,408,515.96/724,914.91
  6. Step 6: Final answer
    x = 555,635.43

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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.