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Finding the Fourth Proportional to 508,919.80, 711,554.60 and 508,919.80

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Solution

The fourth proportional to 508,919.80, 711,554.60 and 508,919.80 is: 711,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,919.80 : 711,554.60 = 508,919.80 : x
  2. Step 2: Convert to fraction form
    508,919.80/711,554.60 = 508,919.80/x
  3. Step 3: Cross multiply
    508,919.80x = 711,554.60 × 508,919.80
  4. Step 4: Simplify right side
    508,919.80x = 362,124,224,721.08
  5. Step 5: Solve for x
    x = 362,124,224,721.08/508,919.80
  6. Step 6: Final answer
    x = 711,554.60

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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.