Home / 780,306.39-1,170,459.60-189,330.39

Finding the Fourth Proportional to 780,306.39, 1,170,459.60 and 189,330.39

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Solution

The fourth proportional to 780,306.39, 1,170,459.60 and 189,330.39 is: 283,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,306.39 : 1,170,459.60 = 189,330.39 : x
  2. Step 2: Convert to fraction form
    780,306.39/1,170,459.60 = 189,330.39/x
  3. Step 3: Cross multiply
    780,306.39x = 1,170,459.60 × 189,330.39
  4. Step 4: Simplify right side
    780,306.39x = 221,603,572,547.24
  5. Step 5: Solve for x
    x = 221,603,572,547.24/780,306.39
  6. Step 6: Final answer
    x = 283,995.59

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Similar ratio
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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.