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Finding the Fourth Proportional to 1,316,496, 1,974,750.48 and 319,224

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Solution

The fourth proportional to 1,316,496, 1,974,750.48 and 319,224 is: 478,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,496 : 1,974,750.48 = 319,224 : x
  2. Step 2: Convert to fraction form
    1,316,496/1,974,750.48 = 319,224/x
  3. Step 3: Cross multiply
    1,316,496x = 1,974,750.48 × 319,224
  4. Step 4: Simplify right side
    1,316,496x = 630,387,747,227.52
  5. Step 5: Solve for x
    x = 630,387,747,227.52/1,316,496
  6. Step 6: Final answer
    x = 478,837.57

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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.