Home / 630,211.71-869,702.52-343,731.79

Finding the Fourth Proportional to 630,211.71, 869,702.52 and 343,731.79

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Solution

The fourth proportional to 630,211.71, 869,702.52 and 343,731.79 is: 474,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,211.71 : 869,702.52 = 343,731.79 : x
  2. Step 2: Convert to fraction form
    630,211.71/869,702.52 = 343,731.79/x
  3. Step 3: Cross multiply
    630,211.71x = 869,702.52 × 343,731.79
  4. Step 4: Simplify right side
    630,211.71x = 298,944,403,967.11
  5. Step 5: Solve for x
    x = 298,944,403,967.11/630,211.71
  6. Step 6: Final answer
    x = 474,355.52

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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.