Home / 738,214.40-1,107,321.60-644,902.40

Finding the Fourth Proportional to 738,214.40, 1,107,321.60 and 644,902.40

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Solution

The fourth proportional to 738,214.40, 1,107,321.60 and 644,902.40 is: 967,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,214.40 : 1,107,321.60 = 644,902.40 : x
  2. Step 2: Convert to fraction form
    738,214.40/1,107,321.60 = 644,902.40/x
  3. Step 3: Cross multiply
    738,214.40x = 1,107,321.60 × 644,902.40
  4. Step 4: Simplify right side
    738,214.40x = 714,114,357,411.84
  5. Step 5: Solve for x
    x = 714,114,357,411.84/738,214.40
  6. Step 6: Final answer
    x = 967,353.60

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Double scale
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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.