Home / 630,293.76-869,810.94-343,815.12

Finding the Fourth Proportional to 630,293.76, 869,810.94 and 343,815.12

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Solution

The fourth proportional to 630,293.76, 869,810.94 and 343,815.12 is: 474,467.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,293.76 : 869,810.94 = 343,815.12 : x
  2. Step 2: Convert to fraction form
    630,293.76/869,810.94 = 343,815.12/x
  3. Step 3: Cross multiply
    630,293.76x = 869,810.94 × 343,815.12
  4. Step 4: Simplify right side
    630,293.76x = 299,054,152,713.41
  5. Step 5: Solve for x
    x = 299,054,152,713.41/630,293.76
  6. Step 6: Final answer
    x = 474,467.89

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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.