Home / 723,165.68-997,863.54-400,875.50

Finding the Fourth Proportional to 723,165.68, 997,863.54 and 400,875.50

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Solution

The fourth proportional to 723,165.68, 997,863.54 and 400,875.50 is: 553,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,165.68 : 997,863.54 = 400,875.50 : x
  2. Step 2: Convert to fraction form
    723,165.68/997,863.54 = 400,875.50/x
  3. Step 3: Cross multiply
    723,165.68x = 997,863.54 × 400,875.50
  4. Step 4: Simplify right side
    723,165.68x = 400,019,045,529.27
  5. Step 5: Solve for x
    x = 400,019,045,529.27/723,165.68
  6. Step 6: Final answer
    x = 553,149.93

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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.