Home / 740,539.20-1,110,549.60-385,435.20

Finding the Fourth Proportional to 740,539.20, 1,110,549.60 and 385,435.20

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Solution

The fourth proportional to 740,539.20, 1,110,549.60 and 385,435.20 is: 578,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,539.20 : 1,110,549.60 = 385,435.20 : x
  2. Step 2: Convert to fraction form
    740,539.20/1,110,549.60 = 385,435.20/x
  3. Step 3: Cross multiply
    740,539.20x = 1,110,549.60 × 385,435.20
  4. Step 4: Simplify right side
    740,539.20x = 428,044,907,185.92
  5. Step 5: Solve for x
    x = 428,044,907,185.92/740,539.20
  6. Step 6: Final answer
    x = 578,017.89

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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.