Home / 738,853.92-1,108,240.74-289,655.10

Finding the Fourth Proportional to 738,853.92, 1,108,240.74 and 289,655.10

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Solution

The fourth proportional to 738,853.92, 1,108,240.74 and 289,655.10 is: 434,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,853.92 : 1,108,240.74 = 289,655.10 : x
  2. Step 2: Convert to fraction form
    738,853.92/1,108,240.74 = 289,655.10/x
  3. Step 3: Cross multiply
    738,853.92x = 1,108,240.74 × 289,655.10
  4. Step 4: Simplify right side
    738,853.92x = 321,007,582,368.77
  5. Step 5: Solve for x
    x = 321,007,582,368.77/738,853.92
  6. Step 6: Final answer
    x = 434,466.91

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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.