Home / 740,491.20-1,110,477.60-385,387.20

Finding the Fourth Proportional to 740,491.20, 1,110,477.60 and 385,387.20

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Solution

The fourth proportional to 740,491.20, 1,110,477.60 and 385,387.20 is: 577,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,491.20 : 1,110,477.60 = 385,387.20 : x
  2. Step 2: Convert to fraction form
    740,491.20/1,110,477.60 = 385,387.20/x
  3. Step 3: Cross multiply
    740,491.20x = 1,110,477.60 × 385,387.20
  4. Step 4: Simplify right side
    740,491.20x = 427,963,852,926.72
  5. Step 5: Solve for x
    x = 427,963,852,926.72/740,491.20
  6. Step 6: Final answer
    x = 577,945.90

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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.