Home / 740,555.20-1,110,573.60-385,451.20

Finding the Fourth Proportional to 740,555.20, 1,110,573.60 and 385,451.20

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Solution

The fourth proportional to 740,555.20, 1,110,573.60 and 385,451.20 is: 578,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,555.20 : 1,110,573.60 = 385,451.20 : x
  2. Step 2: Convert to fraction form
    740,555.20/1,110,573.60 = 385,451.20/x
  3. Step 3: Cross multiply
    740,555.20x = 1,110,573.60 × 385,451.20
  4. Step 4: Simplify right side
    740,555.20x = 428,071,926,808.32
  5. Step 5: Solve for x
    x = 428,071,926,808.32/740,555.20
  6. Step 6: Final answer
    x = 578,041.89

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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.