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Finding the Fourth Proportional to 771,607.44, 1,064,794.08 and 427,429.44

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Solution

The fourth proportional to 771,607.44, 1,064,794.08 and 427,429.44 is: 589,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,607.44 : 1,064,794.08 = 427,429.44 : x
  2. Step 2: Convert to fraction form
    771,607.44/1,064,794.08 = 427,429.44/x
  3. Step 3: Cross multiply
    771,607.44x = 1,064,794.08 × 427,429.44
  4. Step 4: Simplify right side
    771,607.44x = 455,124,337,329.72
  5. Step 5: Solve for x
    x = 455,124,337,329.72/771,607.44
  6. Step 6: Final answer
    x = 589,839.23

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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.