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Finding the Fourth Proportional to 477,966.80, 716,950.20 and 328,667.60

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Solution

The fourth proportional to 477,966.80, 716,950.20 and 328,667.60 is: 493,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,966.80 : 716,950.20 = 328,667.60 : x
  2. Step 2: Convert to fraction form
    477,966.80/716,950.20 = 328,667.60/x
  3. Step 3: Cross multiply
    477,966.80x = 716,950.20 × 328,667.60
  4. Step 4: Simplify right side
    477,966.80x = 235,638,301,553.52
  5. Step 5: Solve for x
    x = 235,638,301,553.52/477,966.80
  6. Step 6: Final answer
    x = 493,001.40

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1.5x scale

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.