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Finding the Fourth Proportional to 700,200.80, 1,050,560.40 and 674,280.80

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Solution

The fourth proportional to 700,200.80, 1,050,560.40 and 674,280.80 is: 1,011,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,200.80 : 1,050,560.40 = 674,280.80 : x
  2. Step 2: Convert to fraction form
    700,200.80/1,050,560.40 = 674,280.80/x
  3. Step 3: Cross multiply
    700,200.80x = 1,050,560.40 × 674,280.80
  4. Step 4: Simplify right side
    700,200.80x = 708,372,706,960.32
  5. Step 5: Solve for x
    x = 708,372,706,960.32/700,200.80
  6. Step 6: Final answer
    x = 1,011,670.80

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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.