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Finding the Fourth Proportional to 710,291.33, 980,137.72 and 400,244.39

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Solution

The fourth proportional to 710,291.33, 980,137.72 and 400,244.39 is: 552,301.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,291.33 : 980,137.72 = 400,244.39 : x
  2. Step 2: Convert to fraction form
    710,291.33/980,137.72 = 400,244.39/x
  3. Step 3: Cross multiply
    710,291.33x = 980,137.72 × 400,244.39
  4. Step 4: Simplify right side
    710,291.33x = 392,294,623,857.39
  5. Step 5: Solve for x
    x = 392,294,623,857.39/710,291.33
  6. Step 6: Final answer
    x = 552,301.02

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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.