Home / 630,240.36-869,734.40-343,766.60

Finding the Fourth Proportional to 630,240.36, 869,734.40 and 343,766.60

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Solution

The fourth proportional to 630,240.36, 869,734.40 and 343,766.60 is: 474,399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,240.36 : 869,734.40 = 343,766.60 : x
  2. Step 2: Convert to fraction form
    630,240.36/869,734.40 = 343,766.60/x
  3. Step 3: Cross multiply
    630,240.36x = 869,734.40 × 343,766.60
  4. Step 4: Simplify right side
    630,240.36x = 298,985,637,591.04
  5. Step 5: Solve for x
    x = 298,985,637,591.04/630,240.36
  6. Step 6: Final answer
    x = 474,399.38

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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.