Home / 630,225.50-869,721.44-343,745.51

Finding the Fourth Proportional to 630,225.50, 869,721.44 and 343,745.51

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Solution

The fourth proportional to 630,225.50, 869,721.44 and 343,745.51 is: 474,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,225.50 : 869,721.44 = 343,745.51 : x
  2. Step 2: Convert to fraction form
    630,225.50/869,721.44 = 343,745.51/x
  3. Step 3: Cross multiply
    630,225.50x = 869,721.44 × 343,745.51
  4. Step 4: Simplify right side
    630,225.50x = 298,962,833,883.40
  5. Step 5: Solve for x
    x = 298,962,833,883.40/630,225.50
  6. Step 6: Final answer
    x = 474,374.39

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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.