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Finding the Fourth Proportional to 706,673.30, 975,120.45 and 477,728.60

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Solution

The fourth proportional to 706,673.30, 975,120.45 and 477,728.60 is: 659,205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,673.30 : 975,120.45 = 477,728.60 : x
  2. Step 2: Convert to fraction form
    706,673.30/975,120.45 = 477,728.60/x
  3. Step 3: Cross multiply
    706,673.30x = 975,120.45 × 477,728.60
  4. Step 4: Simplify right side
    706,673.30x = 465,842,927,409.87
  5. Step 5: Solve for x
    x = 465,842,927,409.87/706,673.30
  6. Step 6: Final answer
    x = 659,205.50

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1.5x scale

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.