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Finding the Fourth Proportional to 376,670.40, 565,005.60 and 350,426.40

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Solution

The fourth proportional to 376,670.40, 565,005.60 and 350,426.40 is: 525,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,670.40 : 565,005.60 = 350,426.40 : x
  2. Step 2: Convert to fraction form
    376,670.40/565,005.60 = 350,426.40/x
  3. Step 3: Cross multiply
    376,670.40x = 565,005.60 × 350,426.40
  4. Step 4: Simplify right side
    376,670.40x = 197,992,878,387.84
  5. Step 5: Solve for x
    x = 197,992,878,387.84/376,670.40
  6. Step 6: Final answer
    x = 525,639.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.