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Finding the Fourth Proportional to 624,187.90, 934,697.85 and 343,387.90

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Solution

The fourth proportional to 624,187.90, 934,697.85 and 343,387.90 is: 514,210.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,187.90 : 934,697.85 = 343,387.90 : x
  2. Step 2: Convert to fraction form
    624,187.90/934,697.85 = 343,387.90/x
  3. Step 3: Cross multiply
    624,187.90x = 934,697.85 × 343,387.90
  4. Step 4: Simplify right side
    624,187.90x = 320,963,931,846.02
  5. Step 5: Solve for x
    x = 320,963,931,846.02/624,187.90
  6. Step 6: Final answer
    x = 514,210.44

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1.5x scale

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.