Home / 771,515.69-1,064,680.39-427,350.49

Finding the Fourth Proportional to 771,515.69, 1,064,680.39 and 427,350.49

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Solution

The fourth proportional to 771,515.69, 1,064,680.39 and 427,350.49 is: 589,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,515.69 : 1,064,680.39 = 427,350.49 : x
  2. Step 2: Convert to fraction form
    771,515.69/1,064,680.39 = 427,350.49/x
  3. Step 3: Cross multiply
    771,515.69x = 1,064,680.39 × 427,350.49
  4. Step 4: Simplify right side
    771,515.69x = 454,991,686,359.89
  5. Step 5: Solve for x
    x = 454,991,686,359.89/771,515.69
  6. Step 6: Final answer
    x = 589,737.44

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Double scale
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1.5x scale

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.