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Finding the Fourth Proportional to 545,611.56, 752,683.17 and 423,920.04

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Solution

The fourth proportional to 545,611.56, 752,683.17 and 423,920.04 is: 584,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,611.56 : 752,683.17 = 423,920.04 : x
  2. Step 2: Convert to fraction form
    545,611.56/752,683.17 = 423,920.04/x
  3. Step 3: Cross multiply
    545,611.56x = 752,683.17 × 423,920.04
  4. Step 4: Simplify right side
    545,611.56x = 319,077,479,533.73
  5. Step 5: Solve for x
    x = 319,077,479,533.73/545,611.56
  6. Step 6: Final answer
    x = 584,807.04

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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.