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Finding the Fourth Proportional to 612,129.04, 844,737.32 and 340,188.32

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Solution

The fourth proportional to 612,129.04, 844,737.32 and 340,188.32 is: 469,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,129.04 : 844,737.32 = 340,188.32 : x
  2. Step 2: Convert to fraction form
    612,129.04/844,737.32 = 340,188.32/x
  3. Step 3: Cross multiply
    612,129.04x = 844,737.32 × 340,188.32
  4. Step 4: Simplify right side
    612,129.04x = 287,369,769,732.10
  5. Step 5: Solve for x
    x = 287,369,769,732.10/612,129.04
  6. Step 6: Final answer
    x = 469,459.46

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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.