Home / 768,420.08-1,059,433.76-630,089.29

Finding the Fourth Proportional to 768,420.08, 1,059,433.76 and 630,089.29

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Solution

The fourth proportional to 768,420.08, 1,059,433.76 and 630,089.29 is: 868,714.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,420.08 : 1,059,433.76 = 630,089.29 : x
  2. Step 2: Convert to fraction form
    768,420.08/1,059,433.76 = 630,089.29/x
  3. Step 3: Cross multiply
    768,420.08x = 1,059,433.76 × 630,089.29
  4. Step 4: Simplify right side
    768,420.08x = 667,537,865,640.43
  5. Step 5: Solve for x
    x = 667,537,865,640.43/768,420.08
  6. Step 6: Final answer
    x = 868,714.76

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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.