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Finding the Fourth Proportional to 771,598.84, 1,064,794.82 and 427,433.70

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Solution

The fourth proportional to 771,598.84, 1,064,794.82 and 427,433.70 is: 589,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,598.84 : 1,064,794.82 = 427,433.70 : x
  2. Step 2: Convert to fraction form
    771,598.84/1,064,794.82 = 427,433.70/x
  3. Step 3: Cross multiply
    771,598.84x = 1,064,794.82 × 427,433.70
  4. Step 4: Simplify right side
    771,598.84x = 455,129,189,653.43
  5. Step 5: Solve for x
    x = 455,129,189,653.43/771,598.84
  6. Step 6: Final answer
    x = 589,852.09

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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.