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Finding the Fourth Proportional to 612,435.84, 845,208.81 and 367,429.83

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Solution

The fourth proportional to 612,435.84, 845,208.81 and 367,429.83 is: 507,081.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,435.84 : 845,208.81 = 367,429.83 : x
  2. Step 2: Convert to fraction form
    612,435.84/845,208.81 = 367,429.83/x
  3. Step 3: Cross multiply
    612,435.84x = 845,208.81 × 367,429.83
  4. Step 4: Simplify right side
    612,435.84x = 310,554,929,372.80
  5. Step 5: Solve for x
    x = 310,554,929,372.80/612,435.84
  6. Step 6: Final answer
    x = 507,081.57

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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.