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Finding the Fourth Proportional to 1,316,501, 1,974,757.98 and 319,229

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Solution

The fourth proportional to 1,316,501, 1,974,757.98 and 319,229 is: 478,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,501 : 1,974,757.98 = 319,229 : x
  2. Step 2: Convert to fraction form
    1,316,501/1,974,757.98 = 319,229/x
  3. Step 3: Cross multiply
    1,316,501x = 1,974,757.98 × 319,229
  4. Step 4: Simplify right side
    1,316,501x = 630,400,015,197.42
  5. Step 5: Solve for x
    x = 630,400,015,197.42/1,316,501
  6. Step 6: Final answer
    x = 478,845.07

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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.