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Finding the Fourth Proportional to 623,437.67, 860,326.72 and 351,503.15

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Solution

The fourth proportional to 623,437.67, 860,326.72 and 351,503.15 is: 485,064.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,437.67 : 860,326.72 = 351,503.15 : x
  2. Step 2: Convert to fraction form
    623,437.67/860,326.72 = 351,503.15/x
  3. Step 3: Cross multiply
    623,437.67x = 860,326.72 × 351,503.15
  4. Step 4: Simplify right side
    623,437.67x = 302,407,550,351.65
  5. Step 5: Solve for x
    x = 302,407,550,351.65/623,437.67
  6. Step 6: Final answer
    x = 485,064.61

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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.