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Finding the Fourth Proportional to 502,858.73, 754,281.72 and 123,784.20

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Solution

The fourth proportional to 502,858.73, 754,281.72 and 123,784.20 is: 185,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,858.73 : 754,281.72 = 123,784.20 : x
  2. Step 2: Convert to fraction form
    502,858.73/754,281.72 = 123,784.20/x
  3. Step 3: Cross multiply
    502,858.73x = 754,281.72 × 123,784.20
  4. Step 4: Simplify right side
    502,858.73x = 93,368,159,284.82
  5. Step 5: Solve for x
    x = 93,368,159,284.82/502,858.73
  6. Step 6: Final answer
    x = 185,674.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.