Home / 875,235.40-1,310,228.70-520,066.60

Finding the Fourth Proportional to 875,235.40, 1,310,228.70 and 520,066.60

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Solution

The fourth proportional to 875,235.40, 1,310,228.70 and 520,066.60 is: 778,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,235.40 : 1,310,228.70 = 520,066.60 : x
  2. Step 2: Convert to fraction form
    875,235.40/1,310,228.70 = 520,066.60/x
  3. Step 3: Cross multiply
    875,235.40x = 1,310,228.70 × 520,066.60
  4. Step 4: Simplify right side
    875,235.40x = 681,406,185,231.42
  5. Step 5: Solve for x
    x = 681,406,185,231.42/875,235.40
  6. Step 6: Final answer
    x = 778,540.48

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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.