Home / 711,204.80-1,066,807.20-657,137.60

Finding the Fourth Proportional to 711,204.80, 1,066,807.20 and 657,137.60

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Solution

The fourth proportional to 711,204.80, 1,066,807.20 and 657,137.60 is: 985,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,204.80 : 1,066,807.20 = 657,137.60 : x
  2. Step 2: Convert to fraction form
    711,204.80/1,066,807.20 = 657,137.60/x
  3. Step 3: Cross multiply
    711,204.80x = 1,066,807.20 × 657,137.60
  4. Step 4: Simplify right side
    711,204.80x = 701,039,123,070.72
  5. Step 5: Solve for x
    x = 701,039,123,070.72/711,204.80
  6. Step 6: Final answer
    x = 985,706.40

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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.