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Finding the Fourth Proportional to 670,435.90, 925,069.16 and 376,095.40

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Solution

The fourth proportional to 670,435.90, 925,069.16 and 376,095.40 is: 518,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,435.90 : 925,069.16 = 376,095.40 : x
  2. Step 2: Convert to fraction form
    670,435.90/925,069.16 = 376,095.40/x
  3. Step 3: Cross multiply
    670,435.90x = 925,069.16 × 376,095.40
  4. Step 4: Simplify right side
    670,435.90x = 347,914,255,757.86
  5. Step 5: Solve for x
    x = 347,914,255,757.86/670,435.90
  6. Step 6: Final answer
    x = 518,937.39

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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.