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Finding the Fourth Proportional to 670,400.28, 925,153.44 and 368,594.28

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Solution

The fourth proportional to 670,400.28, 925,153.44 and 368,594.28 is: 508,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,400.28 : 925,153.44 = 368,594.28 : x
  2. Step 2: Convert to fraction form
    670,400.28/925,153.44 = 368,594.28/x
  3. Step 3: Cross multiply
    670,400.28x = 925,153.44 × 368,594.28
  4. Step 4: Simplify right side
    670,400.28x = 341,006,266,106.32
  5. Step 5: Solve for x
    x = 341,006,266,106.32/670,400.28
  6. Step 6: Final answer
    x = 508,660.69

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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.