Home / 630,342-869,871.96-343,863.23

Finding the Fourth Proportional to 630,342, 869,871.96 and 343,863.23

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Solution

The fourth proportional to 630,342, 869,871.96 and 343,863.23 is: 474,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,342 : 869,871.96 = 343,863.23 : x
  2. Step 2: Convert to fraction form
    630,342/869,871.96 = 343,863.23/x
  3. Step 3: Cross multiply
    630,342x = 869,871.96 × 343,863.23
  4. Step 4: Simplify right side
    630,342x = 299,116,977,502.67
  5. Step 5: Solve for x
    x = 299,116,977,502.67/630,342
  6. Step 6: Final answer
    x = 474,531.25

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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.