Home / 739,688.80-1,106,725.20-490,856.80

Finding the Fourth Proportional to 739,688.80, 1,106,725.20 and 490,856.80

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Solution

The fourth proportional to 739,688.80, 1,106,725.20 and 490,856.80 is: 734,421.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,688.80 : 1,106,725.20 = 490,856.80 : x
  2. Step 2: Convert to fraction form
    739,688.80/1,106,725.20 = 490,856.80/x
  3. Step 3: Cross multiply
    739,688.80x = 1,106,725.20 × 490,856.80
  4. Step 4: Simplify right side
    739,688.80x = 543,243,590,151.36
  5. Step 5: Solve for x
    x = 543,243,590,151.36/739,688.80
  6. Step 6: Final answer
    x = 734,421.81

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Double scale
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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.