Home / 724,806.92-1,000,199.70-402,537.80

Finding the Fourth Proportional to 724,806.92, 1,000,199.70 and 402,537.80

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Solution

The fourth proportional to 724,806.92, 1,000,199.70 and 402,537.80 is: 555,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,806.92 : 1,000,199.70 = 402,537.80 : x
  2. Step 2: Convert to fraction form
    724,806.92/1,000,199.70 = 402,537.80/x
  3. Step 3: Cross multiply
    724,806.92x = 1,000,199.70 × 402,537.80
  4. Step 4: Simplify right side
    724,806.92x = 402,618,186,798.66
  5. Step 5: Solve for x
    x = 402,618,186,798.66/724,806.92
  6. Step 6: Final answer
    x = 555,483.36

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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.