Home / 723,065.36-997,889.88-400,876.52

Finding the Fourth Proportional to 723,065.36, 997,889.88 and 400,876.52

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Solution

The fourth proportional to 723,065.36, 997,889.88 and 400,876.52 is: 553,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,065.36 : 997,889.88 = 400,876.52 : x
  2. Step 2: Convert to fraction form
    723,065.36/997,889.88 = 400,876.52/x
  3. Step 3: Cross multiply
    723,065.36x = 997,889.88 × 400,876.52
  4. Step 4: Simplify right side
    723,065.36x = 400,030,622,437.62
  5. Step 5: Solve for x
    x = 400,030,622,437.62/723,065.36
  6. Step 6: Final answer
    x = 553,242.69

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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.