Home / 630,046.96-869,485.80-343,582.72

Finding the Fourth Proportional to 630,046.96, 869,485.80 and 343,582.72

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Solution

The fourth proportional to 630,046.96, 869,485.80 and 343,582.72 is: 474,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,046.96 : 869,485.80 = 343,582.72 : x
  2. Step 2: Convert to fraction form
    630,046.96/869,485.80 = 343,582.72/x
  3. Step 3: Cross multiply
    630,046.96x = 869,485.80 × 343,582.72
  4. Step 4: Simplify right side
    630,046.96x = 298,740,296,165.38
  5. Step 5: Solve for x
    x = 298,740,296,165.38/630,046.96
  6. Step 6: Final answer
    x = 474,155.60

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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.