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Finding the Fourth Proportional to 623,437.54, 860,326.55 and 351,503.02

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Solution

The fourth proportional to 623,437.54, 860,326.55 and 351,503.02 is: 485,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,437.54 : 860,326.55 = 351,503.02 : x
  2. Step 2: Convert to fraction form
    623,437.54/860,326.55 = 351,503.02/x
  3. Step 3: Cross multiply
    623,437.54x = 860,326.55 × 351,503.02
  4. Step 4: Simplify right side
    623,437.54x = 302,407,381,147.21
  5. Step 5: Solve for x
    x = 302,407,381,147.21/623,437.54
  6. Step 6: Final answer
    x = 485,064.44

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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.