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Finding the Fourth Proportional to 723,125.67, 997,808.67 and 400,835.67

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Solution

The fourth proportional to 723,125.67, 997,808.67 and 400,835.67 is: 553,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,125.67 : 997,808.67 = 400,835.67 : x
  2. Step 2: Convert to fraction form
    723,125.67/997,808.67 = 400,835.67/x
  3. Step 3: Cross multiply
    723,125.67x = 997,808.67 × 400,835.67
  4. Step 4: Simplify right side
    723,125.67x = 399,957,306,771.26
  5. Step 5: Solve for x
    x = 399,957,306,771.26/723,125.67
  6. Step 6: Final answer
    x = 553,095.16

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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.