Home / 738,666.60-1,107,222.30-289,213.80

Finding the Fourth Proportional to 738,666.60, 1,107,222.30 and 289,213.80

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Solution

The fourth proportional to 738,666.60, 1,107,222.30 and 289,213.80 is: 433,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,666.60 : 1,107,222.30 = 289,213.80 : x
  2. Step 2: Convert to fraction form
    738,666.60/1,107,222.30 = 289,213.80/x
  3. Step 3: Cross multiply
    738,666.60x = 1,107,222.30 × 289,213.80
  4. Step 4: Simplify right side
    738,666.60x = 320,223,968,827.74
  5. Step 5: Solve for x
    x = 320,223,968,827.74/738,666.60
  6. Step 6: Final answer
    x = 433,516.24

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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.