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Finding the Fourth Proportional to 674,556.28, 930,448.38 and 432,455.38

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Solution

The fourth proportional to 674,556.28, 930,448.38 and 432,455.38 is: 596,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,556.28 : 930,448.38 = 432,455.38 : x
  2. Step 2: Convert to fraction form
    674,556.28/930,448.38 = 432,455.38/x
  3. Step 3: Cross multiply
    674,556.28x = 930,448.38 × 432,455.38
  4. Step 4: Simplify right side
    674,556.28x = 402,377,407,038.87
  5. Step 5: Solve for x
    x = 402,377,407,038.87/674,556.28
  6. Step 6: Final answer
    x = 596,506.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.