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Finding the Fourth Proportional to 692,917, 956,225.52 and 391,130.44

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Solution

The fourth proportional to 692,917, 956,225.52 and 391,130.44 is: 539,760.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,917 : 956,225.52 = 391,130.44 : x
  2. Step 2: Convert to fraction form
    692,917/956,225.52 = 391,130.44/x
  3. Step 3: Cross multiply
    692,917x = 956,225.52 × 391,130.44
  4. Step 4: Simplify right side
    692,917x = 374,008,908,376.83
  5. Step 5: Solve for x
    x = 374,008,908,376.83/692,917
  6. Step 6: Final answer
    x = 539,760.04

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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.