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Finding the Fourth Proportional to 723,570.86, 998,502.57 and 401,310.95

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Solution

The fourth proportional to 723,570.86, 998,502.57 and 401,310.95 is: 553,795.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,570.86 : 998,502.57 = 401,310.95 : x
  2. Step 2: Convert to fraction form
    723,570.86/998,502.57 = 401,310.95/x
  3. Step 3: Cross multiply
    723,570.86x = 998,502.57 × 401,310.95
  4. Step 4: Simplify right side
    723,570.86x = 400,710,009,951.63
  5. Step 5: Solve for x
    x = 400,710,009,951.63/723,570.86
  6. Step 6: Final answer
    x = 553,795.12

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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.