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Finding the Fourth Proportional to 508,896.30, 711,521.70 and 508,896.30

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Solution

The fourth proportional to 508,896.30, 711,521.70 and 508,896.30 is: 711,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,896.30 : 711,521.70 = 508,896.30 : x
  2. Step 2: Convert to fraction form
    508,896.30/711,521.70 = 508,896.30/x
  3. Step 3: Cross multiply
    508,896.30x = 711,521.70 × 508,896.30
  4. Step 4: Simplify right side
    508,896.30x = 362,090,760,499.71
  5. Step 5: Solve for x
    x = 362,090,760,499.71/508,896.30
  6. Step 6: Final answer
    x = 711,521.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.