Home / 738,667.10-1,107,223.05-289,214.30

Finding the Fourth Proportional to 738,667.10, 1,107,223.05 and 289,214.30

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Solution

The fourth proportional to 738,667.10, 1,107,223.05 and 289,214.30 is: 433,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,667.10 : 1,107,223.05 = 289,214.30 : x
  2. Step 2: Convert to fraction form
    738,667.10/1,107,223.05 = 289,214.30/x
  3. Step 3: Cross multiply
    738,667.10x = 1,107,223.05 × 289,214.30
  4. Step 4: Simplify right side
    738,667.10x = 320,224,739,349.62
  5. Step 5: Solve for x
    x = 320,224,739,349.62/738,667.10
  6. Step 6: Final answer
    x = 433,516.99

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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.