Home / 723,138.52-997,826.36-400,848.52

Finding the Fourth Proportional to 723,138.52, 997,826.36 and 400,848.52

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Solution

The fourth proportional to 723,138.52, 997,826.36 and 400,848.52 is: 553,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,138.52 : 997,826.36 = 400,848.52 : x
  2. Step 2: Convert to fraction form
    723,138.52/997,826.36 = 400,848.52/x
  3. Step 3: Cross multiply
    723,138.52x = 997,826.36 × 400,848.52
  4. Step 4: Simplify right side
    723,138.52x = 399,977,219,622.99
  5. Step 5: Solve for x
    x = 399,977,219,622.99/723,138.52
  6. Step 6: Final answer
    x = 553,112.87

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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.