Home / 874,800.40-1,312,200.60-559,613.20

Finding the Fourth Proportional to 874,800.40, 1,312,200.60 and 559,613.20

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Solution

The fourth proportional to 874,800.40, 1,312,200.60 and 559,613.20 is: 839,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,800.40 : 1,312,200.60 = 559,613.20 : x
  2. Step 2: Convert to fraction form
    874,800.40/1,312,200.60 = 559,613.20/x
  3. Step 3: Cross multiply
    874,800.40x = 1,312,200.60 × 559,613.20
  4. Step 4: Simplify right side
    874,800.40x = 734,324,776,807.92
  5. Step 5: Solve for x
    x = 734,324,776,807.92/874,800.40
  6. Step 6: Final answer
    x = 839,419.80

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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.