Home / 740,015.40-1,110,059.55-385,721.40

Finding the Fourth Proportional to 740,015.40, 1,110,059.55 and 385,721.40

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Solution

The fourth proportional to 740,015.40, 1,110,059.55 and 385,721.40 is: 578,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,015.40 : 1,110,059.55 = 385,721.40 : x
  2. Step 2: Convert to fraction form
    740,015.40/1,110,059.55 = 385,721.40/x
  3. Step 3: Cross multiply
    740,015.40x = 1,110,059.55 × 385,721.40
  4. Step 4: Simplify right side
    740,015.40x = 428,173,723,709.37
  5. Step 5: Solve for x
    x = 428,173,723,709.37/740,015.40
  6. Step 6: Final answer
    x = 578,601.10

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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.