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Finding the Fourth Proportional to 458,130.36, 683,475.68 and 433,329.78

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Solution

The fourth proportional to 458,130.36, 683,475.68 and 433,329.78 is: 646,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,130.36 : 683,475.68 = 433,329.78 : x
  2. Step 2: Convert to fraction form
    458,130.36/683,475.68 = 433,329.78/x
  3. Step 3: Cross multiply
    458,130.36x = 683,475.68 × 433,329.78
  4. Step 4: Simplify right side
    458,130.36x = 296,170,363,883.10
  5. Step 5: Solve for x
    x = 296,170,363,883.10/458,130.36
  6. Step 6: Final answer
    x = 646,476.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.