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Finding the Fourth Proportional to 612,060.17, 844,663.51 and 340,139.53

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Solution

The fourth proportional to 612,060.17, 844,663.51 and 340,139.53 is: 469,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,060.17 : 844,663.51 = 340,139.53 : x
  2. Step 2: Convert to fraction form
    612,060.17/844,663.51 = 340,139.53/x
  3. Step 3: Cross multiply
    612,060.17x = 844,663.51 × 340,139.53
  4. Step 4: Simplify right side
    612,060.17x = 287,303,449,299.55
  5. Step 5: Solve for x
    x = 287,303,449,299.55/612,060.17
  6. Step 6: Final answer
    x = 469,403.93

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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.