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Finding the Fourth Proportional to 614,225.57, 847,632.09 and 342,287.49

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Solution

The fourth proportional to 614,225.57, 847,632.09 and 342,287.49 is: 472,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,225.57 : 847,632.09 = 342,287.49 : x
  2. Step 2: Convert to fraction form
    614,225.57/847,632.09 = 342,287.49/x
  3. Step 3: Cross multiply
    614,225.57x = 847,632.09 × 342,287.49
  4. Step 4: Simplify right side
    614,225.57x = 290,133,860,529.55
  5. Step 5: Solve for x
    x = 290,133,860,529.55/614,225.57
  6. Step 6: Final answer
    x = 472,357.18

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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.