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Finding the Fourth Proportional to 710,504.35, 980,484.44 and 388,207.53

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Solution

The fourth proportional to 710,504.35, 980,484.44 and 388,207.53 is: 535,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,504.35 : 980,484.44 = 388,207.53 : x
  2. Step 2: Convert to fraction form
    710,504.35/980,484.44 = 388,207.53/x
  3. Step 3: Cross multiply
    710,504.35x = 980,484.44 × 388,207.53
  4. Step 4: Simplify right side
    710,504.35x = 380,631,440,714.80
  5. Step 5: Solve for x
    x = 380,631,440,714.80/710,504.35
  6. Step 6: Final answer
    x = 535,720.07

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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.