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Finding the Fourth Proportional to 707,309.11, 1,060,368.54 and 307,648.87

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Solution

The fourth proportional to 707,309.11, 1,060,368.54 and 307,648.87 is: 461,214.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,309.11 : 1,060,368.54 = 307,648.87 : x
  2. Step 2: Convert to fraction form
    707,309.11/1,060,368.54 = 307,648.87/x
  3. Step 3: Cross multiply
    707,309.11x = 1,060,368.54 × 307,648.87
  4. Step 4: Simplify right side
    707,309.11x = 326,221,183,114.55
  5. Step 5: Solve for x
    x = 326,221,183,114.55/707,309.11
  6. Step 6: Final answer
    x = 461,214.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.