Home / 740,624.40-1,110,936.60-386,330.40

Finding the Fourth Proportional to 740,624.40, 1,110,936.60 and 386,330.40

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Solution

The fourth proportional to 740,624.40, 1,110,936.60 and 386,330.40 is: 579,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,624.40 : 1,110,936.60 = 386,330.40 : x
  2. Step 2: Convert to fraction form
    740,624.40/1,110,936.60 = 386,330.40/x
  3. Step 3: Cross multiply
    740,624.40x = 1,110,936.60 × 386,330.40
  4. Step 4: Simplify right side
    740,624.40x = 429,188,581,052.64
  5. Step 5: Solve for x
    x = 429,188,581,052.64/740,624.40
  6. Step 6: Final answer
    x = 579,495.60

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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.