Home / 738,842.20-1,108,263.30-423,039.40

Finding the Fourth Proportional to 738,842.20, 1,108,263.30 and 423,039.40

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Solution

The fourth proportional to 738,842.20, 1,108,263.30 and 423,039.40 is: 634,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,842.20 : 1,108,263.30 = 423,039.40 : x
  2. Step 2: Convert to fraction form
    738,842.20/1,108,263.30 = 423,039.40/x
  3. Step 3: Cross multiply
    738,842.20x = 1,108,263.30 × 423,039.40
  4. Step 4: Simplify right side
    738,842.20x = 468,839,041,474.02
  5. Step 5: Solve for x
    x = 468,839,041,474.02/738,842.20
  6. Step 6: Final answer
    x = 634,559.10

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Similar ratio
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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.