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Finding the Fourth Proportional to 674,360.20, 930,681.38 and 368,483

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Solution

The fourth proportional to 674,360.20, 930,681.38 and 368,483 is: 508,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,360.20 : 930,681.38 = 368,483 : x
  2. Step 2: Convert to fraction form
    674,360.20/930,681.38 = 368,483/x
  3. Step 3: Cross multiply
    674,360.20x = 930,681.38 × 368,483
  4. Step 4: Simplify right side
    674,360.20x = 342,940,266,946.54
  5. Step 5: Solve for x
    x = 342,940,266,946.54/674,360.20
  6. Step 6: Final answer
    x = 508,541.68

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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.