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Finding the Fourth Proportional to 477,062.61, 657,668.81 and 379,410.36

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Solution

The fourth proportional to 477,062.61, 657,668.81 and 379,410.36 is: 523,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,062.61 : 657,668.81 = 379,410.36 : x
  2. Step 2: Convert to fraction form
    477,062.61/657,668.81 = 379,410.36/x
  3. Step 3: Cross multiply
    477,062.61x = 657,668.81 × 379,410.36
  4. Step 4: Simplify right side
    477,062.61x = 249,526,360,911.40
  5. Step 5: Solve for x
    x = 249,526,360,911.40/477,062.61
  6. Step 6: Final answer
    x = 523,047.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.