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Finding the Fourth Proportional to 1,230,486.30, 1,845,729.45 and 927,368.10

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Solution

The fourth proportional to 1,230,486.30, 1,845,729.45 and 927,368.10 is: 1,391,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,486.30 : 1,845,729.45 = 927,368.10 : x
  2. Step 2: Convert to fraction form
    1,230,486.30/1,845,729.45 = 927,368.10/x
  3. Step 3: Cross multiply
    1,230,486.30x = 1,845,729.45 × 927,368.10
  4. Step 4: Simplify right side
    1,230,486.30x = 1,711,670,613,160.55
  5. Step 5: Solve for x
    x = 1,711,670,613,160.55/1,230,486.30
  6. Step 6: Final answer
    x = 1,391,052.15

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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.