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Finding the Fourth Proportional to 605,527.20, 908,290.80 and 392,950.80

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Solution

The fourth proportional to 605,527.20, 908,290.80 and 392,950.80 is: 589,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,527.20 : 908,290.80 = 392,950.80 : x
  2. Step 2: Convert to fraction form
    605,527.20/908,290.80 = 392,950.80/x
  3. Step 3: Cross multiply
    605,527.20x = 908,290.80 × 392,950.80
  4. Step 4: Simplify right side
    605,527.20x = 356,913,596,492.64
  5. Step 5: Solve for x
    x = 356,913,596,492.64/605,527.20
  6. Step 6: Final answer
    x = 589,426.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.