Home / 723,033.90-997,788.87-400,749.30

Finding the Fourth Proportional to 723,033.90, 997,788.87 and 400,749.30

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Solution

The fourth proportional to 723,033.90, 997,788.87 and 400,749.30 is: 553,035.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,033.90 : 997,788.87 = 400,749.30 : x
  2. Step 2: Convert to fraction form
    723,033.90/997,788.87 = 400,749.30/x
  3. Step 3: Cross multiply
    723,033.90x = 997,788.87 × 400,749.30
  4. Step 4: Simplify right side
    723,033.90x = 399,863,191,200.29
  5. Step 5: Solve for x
    x = 399,863,191,200.29/723,033.90
  6. Step 6: Final answer
    x = 553,035.19

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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.