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Finding the Fourth Proportional to 545,506.99, 752,787.88 and 300,498.60

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Solution

The fourth proportional to 545,506.99, 752,787.88 and 300,498.60 is: 414,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,506.99 : 752,787.88 = 300,498.60 : x
  2. Step 2: Convert to fraction form
    545,506.99/752,787.88 = 300,498.60/x
  3. Step 3: Cross multiply
    545,506.99x = 752,787.88 × 300,498.60
  4. Step 4: Simplify right side
    545,506.99x = 226,211,704,036.97
  5. Step 5: Solve for x
    x = 226,211,704,036.97/545,506.99
  6. Step 6: Final answer
    x = 414,681.59

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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.