Home / 649,527.86-896,320.22-355,172.18

Finding the Fourth Proportional to 649,527.86, 896,320.22 and 355,172.18

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Solution

The fourth proportional to 649,527.86, 896,320.22 and 355,172.18 is: 490,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,527.86 : 896,320.22 = 355,172.18 : x
  2. Step 2: Convert to fraction form
    649,527.86/896,320.22 = 355,172.18/x
  3. Step 3: Cross multiply
    649,527.86x = 896,320.22 × 355,172.18
  4. Step 4: Simplify right side
    649,527.86x = 318,348,000,258.02
  5. Step 5: Solve for x
    x = 318,348,000,258.02/649,527.86
  6. Step 6: Final answer
    x = 490,122.16

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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.