Home / 738,662.40-1,108,030.05-384,368.40

Finding the Fourth Proportional to 738,662.40, 1,108,030.05 and 384,368.40

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Solution

The fourth proportional to 738,662.40, 1,108,030.05 and 384,368.40 is: 576,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,662.40 : 1,108,030.05 = 384,368.40 : x
  2. Step 2: Convert to fraction form
    738,662.40/1,108,030.05 = 384,368.40/x
  3. Step 3: Cross multiply
    738,662.40x = 1,108,030.05 × 384,368.40
  4. Step 4: Simplify right side
    738,662.40x = 425,891,737,470.42
  5. Step 5: Solve for x
    x = 425,891,737,470.42/738,662.40
  6. Step 6: Final answer
    x = 576,571.57

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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.