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Finding the Fourth Proportional to 877,600.30, 1,316,400.45 and 818,551.30

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Solution

The fourth proportional to 877,600.30, 1,316,400.45 and 818,551.30 is: 1,227,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,600.30 : 1,316,400.45 = 818,551.30 : x
  2. Step 2: Convert to fraction form
    877,600.30/1,316,400.45 = 818,551.30/x
  3. Step 3: Cross multiply
    877,600.30x = 1,316,400.45 × 818,551.30
  4. Step 4: Simplify right side
    877,600.30x = 1,077,541,299,668.09
  5. Step 5: Solve for x
    x = 1,077,541,299,668.09/877,600.30
  6. Step 6: Final answer
    x = 1,227,826.95

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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.