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Finding the Fourth Proportional to 708,167.96, 977,241.23 and 402,243.39

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Solution

The fourth proportional to 708,167.96, 977,241.23 and 402,243.39 is: 555,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,167.96 : 977,241.23 = 402,243.39 : x
  2. Step 2: Convert to fraction form
    708,167.96/977,241.23 = 402,243.39/x
  3. Step 3: Cross multiply
    708,167.96x = 977,241.23 × 402,243.39
  4. Step 4: Simplify right side
    708,167.96x = 393,088,824,197.36
  5. Step 5: Solve for x
    x = 393,088,824,197.36/708,167.96
  6. Step 6: Final answer
    x = 555,078.53

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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.