Home / 724,282.72-999,495.12-401,973.92

Finding the Fourth Proportional to 724,282.72, 999,495.12 and 401,973.92

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Solution

The fourth proportional to 724,282.72, 999,495.12 and 401,973.92 is: 554,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,282.72 : 999,495.12 = 401,973.92 : x
  2. Step 2: Convert to fraction form
    724,282.72/999,495.12 = 401,973.92/x
  3. Step 3: Cross multiply
    724,282.72x = 999,495.12 × 401,973.92
  4. Step 4: Simplify right side
    724,282.72x = 401,770,971,407.27
  5. Step 5: Solve for x
    x = 401,770,971,407.27/724,282.72
  6. Step 6: Final answer
    x = 554,715.67

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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.