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Finding the Fourth Proportional to 614,425.87, 847,895.55 and 342,477.54

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Solution

The fourth proportional to 614,425.87, 847,895.55 and 342,477.54 is: 472,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,425.87 : 847,895.55 = 342,477.54 : x
  2. Step 2: Convert to fraction form
    614,425.87/847,895.55 = 342,477.54/x
  3. Step 3: Cross multiply
    614,425.87x = 847,895.55 × 342,477.54
  4. Step 4: Simplify right side
    614,425.87x = 290,385,182,140.95
  5. Step 5: Solve for x
    x = 290,385,182,140.95/614,425.87
  6. Step 6: Final answer
    x = 472,612.23

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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.