Home / 673,528.57-929,446.30-401,456.20

Finding the Fourth Proportional to 673,528.57, 929,446.30 and 401,456.20

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Solution

The fourth proportional to 673,528.57, 929,446.30 and 401,456.20 is: 553,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,528.57 : 929,446.30 = 401,456.20 : x
  2. Step 2: Convert to fraction form
    673,528.57/929,446.30 = 401,456.20/x
  3. Step 3: Cross multiply
    673,528.57x = 929,446.30 × 401,456.20
  4. Step 4: Simplify right side
    673,528.57x = 373,131,977,364.79
  5. Step 5: Solve for x
    x = 373,131,977,364.79/673,528.57
  6. Step 6: Final answer
    x = 553,995.77

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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.