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Finding the Fourth Proportional to 630,127.92, 869,567.34 and 343,647.36

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Solution

The fourth proportional to 630,127.92, 869,567.34 and 343,647.36 is: 474,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,127.92 : 869,567.34 = 343,647.36 : x
  2. Step 2: Convert to fraction form
    630,127.92/869,567.34 = 343,647.36/x
  3. Step 3: Cross multiply
    630,127.92x = 869,567.34 × 343,647.36
  4. Step 4: Simplify right side
    630,127.92x = 298,824,520,733.22
  5. Step 5: Solve for x
    x = 298,824,520,733.22/630,127.92
  6. Step 6: Final answer
    x = 474,228.35

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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.