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Finding the Fourth Proportional to 637,014.73, 879,069.21 and 346,616.50

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Solution

The fourth proportional to 637,014.73, 879,069.21 and 346,616.50 is: 478,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,014.73 : 879,069.21 = 346,616.50 : x
  2. Step 2: Convert to fraction form
    637,014.73/879,069.21 = 346,616.50/x
  3. Step 3: Cross multiply
    637,014.73x = 879,069.21 × 346,616.50
  4. Step 4: Simplify right side
    637,014.73x = 304,699,893,929.75
  5. Step 5: Solve for x
    x = 304,699,893,929.75/637,014.73
  6. Step 6: Final answer
    x = 478,324.72

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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.